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4.3 列表
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0.1 关于本书
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0.2 如何使用本书
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0.3 小结
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第 1 章 初识算法
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第 1 章 初识算法
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1.1 算法无处不在
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1.2 算法是什么
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1.3 小结
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<span class="md-ellipsis">
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第 2 章 复杂度分析
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第 2 章 复杂度分析
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2.1 算法效率评估
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</span>
|
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|
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|
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</a>
|
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</li>
|
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2.2 迭代与递归
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|
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|
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|
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</a>
|
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</li>
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2.3 时间复杂度
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|
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|
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|
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</a>
|
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</li>
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2.4 空间复杂度
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|
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|
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</a>
|
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</li>
|
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2.5 小结
|
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</span>
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|
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|
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第 3 章 数据结构
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3.1 数据结构分类
|
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</a>
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3.3 数字编码 *
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</a>
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3.4 字符编码 *
|
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|
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</a>
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3.5 小结
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 5v14h17V5H3m4 2v2H5V7h2m-2 6v-2h2v2H5m0 2h2v2H5v-2m13 2H9v-2h9v2m0-4H9v-2h9v2m0-4H9V7h9v2Z"/></svg>
|
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|
||
<span class="md-ellipsis">
|
||
第 4 章 数组与链表
|
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|
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第 4 章 数组与链表
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<span class="md-ellipsis">
|
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4.1 数组
|
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</span>
|
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|
||
|
||
</a>
|
||
</li>
|
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<li class="md-nav__item">
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<a href="../linked_list/" class="md-nav__link">
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<span class="md-ellipsis">
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4.2 链表
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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<label class="md-nav__link md-nav__link--active" for="__toc">
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<span class="md-ellipsis">
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4.3 列表
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<span class="md-nav__icon md-icon"></span>
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<a href="./" class="md-nav__link md-nav__link--active">
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<span class="md-ellipsis">
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4.3 列表
|
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</a>
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<nav class="md-nav md-nav--secondary" aria-label="目录">
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目录
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<li class="md-nav__item">
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4.3.1 列表常用操作
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<nav class="md-nav" aria-label="4.3.1 列表常用操作">
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<ul class="md-nav__list">
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<li class="md-nav__item">
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<a href="#1" class="md-nav__link">
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1. 初始化列表
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<li class="md-nav__item">
|
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<a href="#2" class="md-nav__link">
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2. 访问元素
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|
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<li class="md-nav__item">
|
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<a href="#3" class="md-nav__link">
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3. 插入与删除元素
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|
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|
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<li class="md-nav__item">
|
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<a href="#4" class="md-nav__link">
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4. 遍历列表
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|
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|
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|
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<a href="#5" class="md-nav__link">
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5. 拼接列表
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|
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|
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<a href="#6" class="md-nav__link">
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6. 排序列表
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|
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</ul>
|
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</nav>
|
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|
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<li class="md-nav__item">
|
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<a href="#432" class="md-nav__link">
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4.3.2 列表实现
|
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|
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|
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</ul>
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|
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</nav>
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4.4 小结
|
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</span>
|
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|
||
|
||
</a>
|
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|
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|
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|
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|
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|
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</ul>
|
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</nav>
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</li>
|
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||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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<li class="md-nav__item md-nav__item--nested">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17.36 20.2v-5.38h1.79V22H3v-7.18h1.8v5.38h12.56M6.77 14.32l.37-1.76 8.79 1.85-.37 1.76-8.79-1.85m1.16-4.21.76-1.61 8.14 3.78-.76 1.62-8.14-3.79m2.26-3.99 1.15-1.38 6.9 5.76-1.15 1.37-6.9-5.75m4.45-4.25L20 9.08l-1.44 1.07-5.36-7.21 1.44-1.07M6.59 18.41v-1.8h8.98v1.8H6.59Z"/></svg>
|
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|
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<span class="md-ellipsis">
|
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第 5 章 栈与队列
|
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|
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<label class="md-nav__link " for="__nav_6">
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="false">
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第 5 章 栈与队列
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5.1 栈
|
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</span>
|
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|
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|
||
</a>
|
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</li>
|
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<a href="../../chapter_stack_and_queue/queue/" class="md-nav__link">
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|
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5.2 队列
|
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</span>
|
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|
||
|
||
</a>
|
||
</li>
|
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<li class="md-nav__item">
|
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<a href="../../chapter_stack_and_queue/deque/" class="md-nav__link">
|
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<span class="md-ellipsis">
|
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5.3 双向队列
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
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|
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<a href="../../chapter_stack_and_queue/summary/" class="md-nav__link">
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|
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5.4 小结
|
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</span>
|
||
|
||
|
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</a>
|
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</li>
|
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|
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|
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</ul>
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</nav>
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|
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||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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<li class="md-nav__item md-nav__item--nested">
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<div class="md-nav__link md-nav__container">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19.3 17.89c1.32-2.1.7-4.89-1.41-6.21a4.52 4.52 0 0 0-6.21 1.41C10.36 15.2 11 18 13.09 19.3c1.47.92 3.33.92 4.8 0L21 22.39 22.39 21l-3.09-3.11m-2-.62c-.98.98-2.56.97-3.54 0-.97-.98-.97-2.56.01-3.54.97-.97 2.55-.97 3.53 0 .96.99.95 2.57-.03 3.54h.03M19 4H5a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h5.81a6.3 6.3 0 0 1-1.31-2H5v-4h4.18c.16-.71.43-1.39.82-2H5V8h6v2.81a6.3 6.3 0 0 1 2-1.31V8h6v2a6.499 6.499 0 0 1 2 2V6a2 2 0 0 0-2-2Z"/></svg>
|
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|
||
<span class="md-ellipsis">
|
||
第 6 章 哈希表
|
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</span>
|
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|
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|
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</a>
|
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|
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<label class="md-nav__link " for="__nav_7">
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<span class="md-nav__icon md-icon"></span>
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|
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_7_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_7">
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<span class="md-nav__icon md-icon"></span>
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第 6 章 哈希表
|
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../chapter_hashing/hash_map/" class="md-nav__link">
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|
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<span class="md-ellipsis">
|
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6.1 哈希表
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
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|
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|
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|
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<li class="md-nav__item">
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<a href="../../chapter_hashing/hash_collision/" class="md-nav__link">
|
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|
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<span class="md-ellipsis">
|
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6.2 哈希冲突
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_hashing/hash_algorithm/" class="md-nav__link">
|
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|
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|
||
<span class="md-ellipsis">
|
||
6.3 哈希算法
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
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<a href="../../chapter_hashing/summary/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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6.4 小结
|
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</span>
|
||
|
||
|
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</a>
|
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</li>
|
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|
||
|
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|
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|
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</ul>
|
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</nav>
|
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|
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</li>
|
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|
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|
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|
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|
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|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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|
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|
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<li class="md-nav__item md-nav__item--nested">
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<span class="md-ellipsis">
|
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第 7 章 树
|
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</span>
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|
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</a>
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<label class="md-nav__link " for="__nav_8">
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<span class="md-nav__icon md-icon"></span>
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_8_label" aria-expanded="false">
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<span class="md-nav__icon md-icon"></span>
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第 7 章 树
|
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</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
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|
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<li class="md-nav__item">
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<a href="../../chapter_tree/binary_tree/" class="md-nav__link">
|
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|
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<span class="md-ellipsis">
|
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7.1 二叉树
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_tree/binary_tree_traversal/" class="md-nav__link">
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|
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<span class="md-ellipsis">
|
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7.2 二叉树遍历
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
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<a href="../../chapter_tree/array_representation_of_tree/" class="md-nav__link">
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|
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|
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<span class="md-ellipsis">
|
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7.3 二叉树数组表示
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_tree/binary_search_tree/" class="md-nav__link">
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|
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<span class="md-ellipsis">
|
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7.4 二叉搜索树
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_tree/avl_tree/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
7.5 AVL 树 *
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_tree/summary/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
7.6 小结
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_9" >
|
||
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../chapter_heap/" class="md-nav__link ">
|
||
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 1a2.5 2.5 0 0 0-2.5 2.5A2.5 2.5 0 0 0 11 5.79V7H7a2 2 0 0 0-2 2v.71A2.5 2.5 0 0 0 3.5 12 2.5 2.5 0 0 0 5 14.29V15H4a2 2 0 0 0-2 2v1.21A2.5 2.5 0 0 0 .5 20.5 2.5 2.5 0 0 0 3 23a2.5 2.5 0 0 0 2.5-2.5A2.5 2.5 0 0 0 4 18.21V17h4v1.21a2.5 2.5 0 0 0-1.5 2.29A2.5 2.5 0 0 0 9 23a2.5 2.5 0 0 0 2.5-2.5 2.5 2.5 0 0 0-1.5-2.29V17a2 2 0 0 0-2-2H7v-.71A2.5 2.5 0 0 0 8.5 12 2.5 2.5 0 0 0 7 9.71V9h10v.71A2.5 2.5 0 0 0 15.5 12a2.5 2.5 0 0 0 1.5 2.29V15h-1a2 2 0 0 0-2 2v1.21a2.5 2.5 0 0 0-1.5 2.29A2.5 2.5 0 0 0 15 23a2.5 2.5 0 0 0 2.5-2.5 2.5 2.5 0 0 0-1.5-2.29V17h4v1.21a2.5 2.5 0 0 0-1.5 2.29A2.5 2.5 0 0 0 21 23a2.5 2.5 0 0 0 2.5-2.5 2.5 2.5 0 0 0-1.5-2.29V17a2 2 0 0 0-2-2h-1v-.71A2.5 2.5 0 0 0 20.5 12 2.5 2.5 0 0 0 19 9.71V9a2 2 0 0 0-2-2h-4V5.79a2.5 2.5 0 0 0 1.5-2.29A2.5 2.5 0 0 0 12 1m0 1.5a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1M6 11a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m12 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1M3 19.5a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m6 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m6 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m6 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1Z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
第 8 章 堆
|
||
</span>
|
||
|
||
|
||
</a>
|
||
|
||
<label class="md-nav__link " for="__nav_9">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_9_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_9">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
第 8 章 堆
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_heap/heap/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
8.1 堆
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_heap/build_heap/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
8.2 建堆操作
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_heap/top_k/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
8.3 Top-K 问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_heap/summary/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
8.4 小结
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_10" >
|
||
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../chapter_graph/" class="md-nav__link ">
|
||
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="m12 5.37-.44-.06L6 14.9c.24.21.4.48.47.78h11.06c.07-.3.23-.57.47-.78l-5.56-9.59-.44.06M6.6 16.53l4.28 2.53c.29-.27.69-.43 1.12-.43.43 0 .83.16 1.12.43l4.28-2.53H6.6M12 22a1.68 1.68 0 0 1-1.68-1.68l.09-.56-4.3-2.55c-.31.36-.76.58-1.27.58a1.68 1.68 0 0 1-1.68-1.68c0-.79.53-1.45 1.26-1.64V9.36c-.83-.11-1.47-.82-1.47-1.68A1.68 1.68 0 0 1 4.63 6c.55 0 1.03.26 1.34.66l4.41-2.53-.06-.45c0-.93.75-1.68 1.68-1.68.93 0 1.68.75 1.68 1.68l-.06.45 4.41 2.53c.31-.4.79-.66 1.34-.66a1.68 1.68 0 0 1 1.68 1.68c0 .86-.64 1.57-1.47 1.68v5.11c.73.19 1.26.85 1.26 1.64a1.68 1.68 0 0 1-1.68 1.68c-.51 0-.96-.22-1.27-.58l-4.3 2.55.09.56A1.68 1.68 0 0 1 12 22M10.8 4.86 6.3 7.44l.02.24c0 .71-.44 1.32-1.06 1.57l.03 5.25 5.51-9.64m2.4 0 5.51 9.64.03-5.25c-.62-.25-1.06-.86-1.06-1.57l.02-.24-4.5-2.58Z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
第 9 章 图
|
||
</span>
|
||
|
||
|
||
</a>
|
||
|
||
<label class="md-nav__link " for="__nav_10">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_10_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_10">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
第 9 章 图
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_graph/graph/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
9.1 图
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_graph/graph_operations/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
9.2 图基础操作
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_graph/graph_traversal/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
9.3 图的遍历
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_graph/summary/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
9.4 小结
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
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|
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|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_11" >
|
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|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../chapter_searching/" class="md-nav__link ">
|
||
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="m19.31 18.9 3.08 3.1L21 23.39l-3.12-3.07c-.69.43-1.51.68-2.38.68-2.5 0-4.5-2-4.5-4.5s2-4.5 4.5-4.5 4.5 2 4.5 4.5c0 .88-.25 1.71-.69 2.4m-3.81.1a2.5 2.5 0 0 0 0-5 2.5 2.5 0 0 0 0 5M21 4v2H3V4h18M3 16v-2h6v2H3m0-5V9h18v2h-2.03c-1.01-.63-2.2-1-3.47-1s-2.46.37-3.47 1H3Z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
第 10 章 搜索
|
||
</span>
|
||
|
||
|
||
</a>
|
||
|
||
<label class="md-nav__link " for="__nav_11">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_11_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_11">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
第 10 章 搜索
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
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|
||
|
||
|
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|
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|
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|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/binary_search/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
10.1 二分查找
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/binary_search_insertion/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
10.2 二分查找插入点
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/binary_search_edge/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
10.3 二分查找边界
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/replace_linear_by_hashing/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
10.4 哈希优化策略
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/searching_algorithm_revisited/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
10.5 重识搜索算法
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/summary/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
10.6 小结
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
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|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_12" >
|
||
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../chapter_sorting/" class="md-nav__link ">
|
||
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 17h3l-4 4-4-4h3V3h2M2 17h10v2H2M6 5v2H2V5m0 6h7v2H2v-2Z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
第 11 章 排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
|
||
<label class="md-nav__link " for="__nav_12">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_12_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_12">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
第 11 章 排序
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/sorting_algorithm/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.1 排序算法
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/selection_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.2 选择排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/bubble_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.3 冒泡排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/insertion_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.4 插入排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/quick_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.5 快速排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/merge_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.6 归并排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/heap_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.7 堆排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/bucket_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.8 桶排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/counting_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.9 计数排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/radix_sort/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.10 基数排序
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/summary/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
11.11 小结
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
|
||
|
||
|
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|
||
|
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|
||
<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_13" >
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<div class="md-nav__link md-nav__container">
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<a href="../../chapter_divide_and_conquer/" class="md-nav__link ">
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|
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 7v2h5V7h-5M2 9v6h5V9H2m10 0v2H9v2h3v2l3-3-3-3m5 2v2h5v-2h-5m0 4v2h5v-2h-5Z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
第 12 章 分治
|
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</span>
|
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|
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|
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</a>
|
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|
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<label class="md-nav__link " for="__nav_13">
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</div>
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_13_label" aria-expanded="false">
|
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<label class="md-nav__title" for="__nav_13">
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<span class="md-nav__icon md-icon"></span>
|
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第 12 章 分治
|
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</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
|
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|
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<li class="md-nav__item">
|
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|
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|
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|
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<span class="md-ellipsis">
|
||
12.1 分治算法
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_divide_and_conquer/binary_search_recur/" class="md-nav__link">
|
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|
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|
||
<span class="md-ellipsis">
|
||
12.2 分治搜索策略
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_divide_and_conquer/build_binary_tree_problem/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
12.3 构建树问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
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|
||
|
||
|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_divide_and_conquer/hanota_problem/" class="md-nav__link">
|
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|
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|
||
<span class="md-ellipsis">
|
||
12.4 汉诺塔问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_divide_and_conquer/summary/" class="md-nav__link">
|
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|
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|
||
<span class="md-ellipsis">
|
||
12.5 小结
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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|
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|
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</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
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|
||
|
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|
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|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
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<li class="md-nav__item md-nav__item--nested">
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<div class="md-nav__link md-nav__container">
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<a href="../../chapter_backtracking/" class="md-nav__link ">
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|
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M18 15a3 3 0 0 1 3 3 3 3 0 0 1-3 3 2.99 2.99 0 0 1-2.83-2H14v-2h1.17c.41-1.17 1.52-2 2.83-2m0 2a1 1 0 0 0-1 1 1 1 0 0 0 1 1 1 1 0 0 0 1-1 1 1 0 0 0-1-1m0-9a1.43 1.43 0 0 0 1.43-1.43 1.43 1.43 0 1 0-2.86 0A1.43 1.43 0 0 0 18 8m0-5.43a4 4 0 0 1 4 4C22 9.56 18 14 18 14s-4-4.44-4-7.43a4 4 0 0 1 4-4M8.83 17H10v2H8.83A2.99 2.99 0 0 1 6 21a3 3 0 0 1-3-3c0-1.31.83-2.42 2-2.83V14h2v1.17c.85.3 1.53.98 1.83 1.83M6 17a1 1 0 0 0-1 1 1 1 0 0 0 1 1 1 1 0 0 0 1-1 1 1 0 0 0-1-1M6 3a3 3 0 0 1 3 3c0 1.31-.83 2.42-2 2.83V10H5V8.83A2.99 2.99 0 0 1 3 6a3 3 0 0 1 3-3m0 2a1 1 0 0 0-1 1 1 1 0 0 0 1 1 1 1 0 0 0 1-1 1 1 0 0 0-1-1m5 14v-2h2v2h-2m-4-6H5v-2h2v2Z"/></svg>
|
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|
||
<span class="md-ellipsis">
|
||
第 13 章 回溯
|
||
</span>
|
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|
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|
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</a>
|
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|
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<label class="md-nav__link " for="__nav_14">
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<span class="md-nav__icon md-icon"></span>
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</div>
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_14_label" aria-expanded="false">
|
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<label class="md-nav__title" for="__nav_14">
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<span class="md-nav__icon md-icon"></span>
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第 13 章 回溯
|
||
</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_backtracking/backtracking_algorithm/" class="md-nav__link">
|
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|
||
|
||
<span class="md-ellipsis">
|
||
13.1 回溯算法
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
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|
||
<li class="md-nav__item">
|
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<a href="../../chapter_backtracking/permutations_problem/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
13.2 全排列问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
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|
||
<li class="md-nav__item">
|
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<a href="../../chapter_backtracking/subset_sum_problem/" class="md-nav__link">
|
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|
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|
||
<span class="md-ellipsis">
|
||
13.3 子集和问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_backtracking/n_queens_problem/" class="md-nav__link">
|
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|
||
|
||
<span class="md-ellipsis">
|
||
13.4 N 皇后问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_backtracking/summary/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
13.5 小结
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
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</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
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|
||
|
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|
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|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item md-nav__item--nested">
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<div class="md-nav__link md-nav__container">
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<a href="../../chapter_dynamic_programming/" class="md-nav__link ">
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|
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|
||
<span class="md-ellipsis">
|
||
第 14 章 动态规划
|
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|
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|
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|
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</a>
|
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|
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<label class="md-nav__link " for="__nav_15">
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<span class="md-nav__icon md-icon"></span>
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_15_label" aria-expanded="false">
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<span class="md-nav__icon md-icon"></span>
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第 14 章 动态规划
|
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
|
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<a href="../../chapter_dynamic_programming/intro_to_dynamic_programming/" class="md-nav__link">
|
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|
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|
||
<span class="md-ellipsis">
|
||
14.1 初探动态规划
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_dynamic_programming/dp_problem_features/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
14.2 DP 问题特性
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_dynamic_programming/dp_solution_pipeline/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
14.3 DP 解题思路
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_dynamic_programming/knapsack_problem/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
14.4 0-1 背包问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_dynamic_programming/unbounded_knapsack_problem/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
14.5 完全背包问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
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<a href="../../chapter_dynamic_programming/edit_distance_problem/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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14.6 编辑距离问题
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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|
||
|
||
|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_dynamic_programming/summary/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
14.7 小结
|
||
</span>
|
||
|
||
|
||
</a>
|
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</li>
|
||
|
||
|
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</ul>
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</nav>
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</li>
|
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|
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|
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|
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|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item md-nav__item--nested">
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<h1 id="43">4.3 列表<a class="headerlink" href="#43" title="Permanent link">¶</a></h1>
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<p>「列表 list」是一个抽象的数据结构概念，它表示元素的有序集合，支持元素访问、修改、添加、删除和遍历等操作，无需使用者考虑容量限制的问题。列表可以基于链表或数组实现。</p>
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<li>链表天然可以被看作是一个列表，其支持元素增删查改操作，并且可以灵活动态扩容。</li>
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<li>数组也支持元素增删查改，但由于其长度不可变，因此只能被看作是一个具有长度限制的列表。</li>
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<p>当使用数组实现列表时，<strong>长度不可变的性质会导致列表的实用性降低</strong>。这是因为我们通常无法事先确定需要存储多少数据，从而难以选择合适的列表长度。若长度过小，则很可能无法满足使用需求；若长度过大，则会造成内存空间的浪费。</p>
|
||
<p>为解决此问题，我们可以使用「动态数组 dynamic array」来实现列表。它继承了数组的各项优点，并且可以在程序运行过程中进行动态扩容。</p>
|
||
<p>实际上，<strong>许多编程语言中的标准库提供的列表都是基于动态数组实现的</strong>，例如 Python 中的 <code>list</code> 、Java 中的 <code>ArrayList</code> 、C++ 中的 <code>vector</code> 和 C# 中的 <code>List</code> 等。在接下来的讨论中，我们将把“列表”和“动态数组”视为等同的概念。</p>
|
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<h2 id="431">4.3.1 列表常用操作<a class="headerlink" href="#431" title="Permanent link">¶</a></h2>
|
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<h3 id="1">1. 初始化列表<a class="headerlink" href="#1" title="Permanent link">¶</a></h3>
|
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<p>我们通常使用“无初始值”和“有初始值”这两种初始化方法。</p>
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<div class="tabbed-set tabbed-alternate" data-tabs="1:12"><input checked="checked" id="__tabbed_1_1" name="__tabbed_1" type="radio" /><input id="__tabbed_1_2" name="__tabbed_1" type="radio" /><input id="__tabbed_1_3" name="__tabbed_1" type="radio" /><input id="__tabbed_1_4" name="__tabbed_1" type="radio" /><input id="__tabbed_1_5" name="__tabbed_1" type="radio" /><input id="__tabbed_1_6" name="__tabbed_1" type="radio" /><input id="__tabbed_1_7" name="__tabbed_1" type="radio" /><input id="__tabbed_1_8" name="__tabbed_1" type="radio" /><input id="__tabbed_1_9" name="__tabbed_1" type="radio" /><input id="__tabbed_1_10" name="__tabbed_1" type="radio" /><input id="__tabbed_1_11" name="__tabbed_1" type="radio" /><input id="__tabbed_1_12" name="__tabbed_1" type="radio" /><div class="tabbed-labels"><label for="__tabbed_1_1">Python</label><label for="__tabbed_1_2">C++</label><label for="__tabbed_1_3">Java</label><label for="__tabbed_1_4">C#</label><label for="__tabbed_1_5">Go</label><label for="__tabbed_1_6">Swift</label><label for="__tabbed_1_7">JS</label><label for="__tabbed_1_8">TS</label><label for="__tabbed_1_9">Dart</label><label for="__tabbed_1_10">Rust</label><label for="__tabbed_1_11">C</label><label for="__tabbed_1_12">Zig</label></div>
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<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="c1"># 初始化列表</span>
|
||
<a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="c1"># 无初始值</span>
|
||
<a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a><span class="n">nums1</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
|
||
<a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="c1"># 有初始值</span>
|
||
<a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="n">nums</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a><span class="c1">// 需注意，C++ 中 vector 即是本文描述的 nums</span>
|
||
<a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="p">;</span>
|
||
<a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a><span class="c1">// 有初始值</span>
|
||
<a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">};</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">();</span>
|
||
<a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="c1">// 有初始值（注意数组的元素类型需为 int[] 的包装类 Integer[]）</span>
|
||
<a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="n">numbers</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">(</span><span class="n">Arrays</span><span class="p">.</span><span class="na">asList</span><span class="p">(</span><span class="n">numbers</span><span class="p">));</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="p">();</span>
|
||
<a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="c1">// 有初始值</span>
|
||
<a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">numbers</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">2</span><span class="p">,</span><span class="w"> </span><span class="m">5</span><span class="p">,</span><span class="w"> </span><span class="m">4</span><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">numbers</span><span class="p">.</span><span class="n">ToList</span><span class="p">();</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-4-2" name="__codelineno-4-2" href="#__codelineno-4-2"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-4-3" name="__codelineno-4-3" href="#__codelineno-4-3"></a><span class="nx">nums1</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span>
|
||
<a id="__codelineno-4-4" name="__codelineno-4-4" href="#__codelineno-4-4"></a><span class="c1">// 有初始值</span>
|
||
<a id="__codelineno-4-5" name="__codelineno-4-5" href="#__codelineno-4-5"></a><span class="nx">nums</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-5-3" name="__codelineno-5-3" href="#__codelineno-5-3"></a><span class="kd">let</span> <span class="nv">nums1</span><span class="p">:</span> <span class="p">[</span><span class="nb">Int</span><span class="p">]</span> <span class="p">=</span> <span class="p">[]</span>
|
||
<a id="__codelineno-5-4" name="__codelineno-5-4" href="#__codelineno-5-4"></a><span class="c1">// 有初始值</span>
|
||
<a id="__codelineno-5-5" name="__codelineno-5-5" href="#__codelineno-5-5"></a><span class="kd">var</span> <span class="nv">nums</span> <span class="p">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-6-1" name="__codelineno-6-1" href="#__codelineno-6-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-6-2" name="__codelineno-6-2" href="#__codelineno-6-2"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-6-3" name="__codelineno-6-3" href="#__codelineno-6-3"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-6-4" name="__codelineno-6-4" href="#__codelineno-6-4"></a><span class="c1">// 有初始值</span>
|
||
<a id="__codelineno-6-5" name="__codelineno-6-5" href="#__codelineno-6-5"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">1</span><span class="p">,</span><span class="w"> </span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">2</span><span class="p">,</span><span class="w"> </span><span class="mf">5</span><span class="p">,</span><span class="w"> </span><span class="mf">4</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-7-1" name="__codelineno-7-1" href="#__codelineno-7-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-7-2" name="__codelineno-7-2" href="#__codelineno-7-2"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-7-3" name="__codelineno-7-3" href="#__codelineno-7-3"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums1</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-7-4" name="__codelineno-7-4" href="#__codelineno-7-4"></a><span class="c1">// 有初始值</span>
|
||
<a id="__codelineno-7-5" name="__codelineno-7-5" href="#__codelineno-7-5"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">1</span><span class="p">,</span><span class="w"> </span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">2</span><span class="p">,</span><span class="w"> </span><span class="mf">5</span><span class="p">,</span><span class="w"> </span><span class="mf">4</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-8-2" name="__codelineno-8-2" href="#__codelineno-8-2"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-8-3" name="__codelineno-8-3" href="#__codelineno-8-3"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-8-4" name="__codelineno-8-4" href="#__codelineno-8-4"></a><span class="c1">// 有初始值</span>
|
||
<a id="__codelineno-8-5" name="__codelineno-8-5" href="#__codelineno-8-5"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">2</span><span class="p">,</span><span class="w"> </span><span class="m">5</span><span class="p">,</span><span class="w"> </span><span class="m">4</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a><span class="cm">/* 初始化列表 */</span>
|
||
<a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a><span class="c1">// 无初始值</span>
|
||
<a id="__codelineno-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a><span class="kd">let</span><span class="w"> </span><span class="n">nums1</span>: <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Vec</span>::<span class="n">new</span><span class="p">();</span>
|
||
<a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></a><span class="c1">// 有初始值</span>
|
||
<a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a><span class="kd">let</span><span class="w"> </span><span class="n">nums</span>: <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="fm">vec!</span><span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-10-1" name="__codelineno-10-1" href="#__codelineno-10-1"></a><span class="c1">// C 未提供内置动态数组</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a><span class="c1">// 初始化列表</span>
|
||
<a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="kr">var</span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">ArrayList</span><span class="p">(</span><span class="kt">i32</span><span class="p">).</span><span class="n">init</span><span class="p">(</span><span class="n">std</span><span class="p">.</span><span class="n">heap</span><span class="p">.</span><span class="n">page_allocator</span><span class="p">);</span>
|
||
<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a><span class="k">defer</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">deinit</span><span class="p">();</span>
|
||
<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="k">try</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">appendSlice</span><span class="p">(</span><span class="o">&</span><span class="p">[</span><span class="n">_</span><span class="p">]</span><span class="kt">i32</span><span class="p">{</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">});</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<h3 id="2">2. 访问元素<a class="headerlink" href="#2" title="Permanent link">¶</a></h3>
|
||
<p>列表本质上是数组，因此可以在 <span class="arithmatex">\(O(1)\)</span> 时间内访问和更新元素，效率很高。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="2:12"><input checked="checked" id="__tabbed_2_1" name="__tabbed_2" type="radio" /><input id="__tabbed_2_2" name="__tabbed_2" type="radio" /><input id="__tabbed_2_3" name="__tabbed_2" type="radio" /><input id="__tabbed_2_4" name="__tabbed_2" type="radio" /><input id="__tabbed_2_5" name="__tabbed_2" type="radio" /><input id="__tabbed_2_6" name="__tabbed_2" type="radio" /><input id="__tabbed_2_7" name="__tabbed_2" type="radio" /><input id="__tabbed_2_8" name="__tabbed_2" type="radio" /><input id="__tabbed_2_9" name="__tabbed_2" type="radio" /><input id="__tabbed_2_10" name="__tabbed_2" type="radio" /><input id="__tabbed_2_11" name="__tabbed_2" type="radio" /><input id="__tabbed_2_12" name="__tabbed_2" type="radio" /><div class="tabbed-labels"><label for="__tabbed_2_1">Python</label><label for="__tabbed_2_2">C++</label><label for="__tabbed_2_3">Java</label><label for="__tabbed_2_4">C#</label><label for="__tabbed_2_5">Go</label><label for="__tabbed_2_6">Swift</label><label for="__tabbed_2_7">JS</label><label for="__tabbed_2_8">TS</label><label for="__tabbed_2_9">Dart</label><label for="__tabbed_2_10">Rust</label><label for="__tabbed_2_11">C</label><label for="__tabbed_2_12">Zig</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-12-1" name="__codelineno-12-1" href="#__codelineno-12-1"></a><span class="c1"># 访问元素</span>
|
||
<a id="__codelineno-12-2" name="__codelineno-12-2" href="#__codelineno-12-2"></a><span class="n">num</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="c1"># 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-12-3" name="__codelineno-12-3" href="#__codelineno-12-3"></a>
|
||
<a id="__codelineno-12-4" name="__codelineno-12-4" href="#__codelineno-12-4"></a><span class="c1"># 更新元素</span>
|
||
<a id="__codelineno-12-5" name="__codelineno-12-5" href="#__codelineno-12-5"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-13-2" name="__codelineno-13-2" href="#__codelineno-13-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-13-3" name="__codelineno-13-3" href="#__codelineno-13-3"></a>
|
||
<a id="__codelineno-13-4" name="__codelineno-13-4" href="#__codelineno-13-4"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-13-5" name="__codelineno-13-5" href="#__codelineno-13-5"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-14-1" name="__codelineno-14-1" href="#__codelineno-14-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-14-2" name="__codelineno-14-2" href="#__codelineno-14-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="na">get</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-14-3" name="__codelineno-14-3" href="#__codelineno-14-3"></a>
|
||
<a id="__codelineno-14-4" name="__codelineno-14-4" href="#__codelineno-14-4"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-14-5" name="__codelineno-14-5" href="#__codelineno-14-5"></a><span class="n">nums</span><span class="p">.</span><span class="na">set</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-15-1" name="__codelineno-15-1" href="#__codelineno-15-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-15-2" name="__codelineno-15-2" href="#__codelineno-15-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="m">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-15-3" name="__codelineno-15-3" href="#__codelineno-15-3"></a>
|
||
<a id="__codelineno-15-4" name="__codelineno-15-4" href="#__codelineno-15-4"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-15-5" name="__codelineno-15-5" href="#__codelineno-15-5"></a><span class="n">nums</span><span class="p">[</span><span class="m">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-16-1" name="__codelineno-16-1" href="#__codelineno-16-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-16-2" name="__codelineno-16-2" href="#__codelineno-16-2"></a><span class="nx">num</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-16-3" name="__codelineno-16-3" href="#__codelineno-16-3"></a>
|
||
<a id="__codelineno-16-4" name="__codelineno-16-4" href="#__codelineno-16-4"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-16-5" name="__codelineno-16-5" href="#__codelineno-16-5"></a><span class="nx">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-17-1" name="__codelineno-17-1" href="#__codelineno-17-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-17-2" name="__codelineno-17-2" href="#__codelineno-17-2"></a><span class="kd">let</span> <span class="nv">num</span> <span class="p">=</span> <span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-17-3" name="__codelineno-17-3" href="#__codelineno-17-3"></a>
|
||
<a id="__codelineno-17-4" name="__codelineno-17-4" href="#__codelineno-17-4"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-17-5" name="__codelineno-17-5" href="#__codelineno-17-5"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="p">=</span> <span class="mi">0</span> <span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-18-1" name="__codelineno-18-1" href="#__codelineno-18-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-18-2" name="__codelineno-18-2" href="#__codelineno-18-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mf">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-18-3" name="__codelineno-18-3" href="#__codelineno-18-3"></a>
|
||
<a id="__codelineno-18-4" name="__codelineno-18-4" href="#__codelineno-18-4"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-18-5" name="__codelineno-18-5" href="#__codelineno-18-5"></a><span class="nx">nums</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-19-1" name="__codelineno-19-1" href="#__codelineno-19-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-19-2" name="__codelineno-19-2" href="#__codelineno-19-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mf">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-19-3" name="__codelineno-19-3" href="#__codelineno-19-3"></a>
|
||
<a id="__codelineno-19-4" name="__codelineno-19-4" href="#__codelineno-19-4"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-19-5" name="__codelineno-19-5" href="#__codelineno-19-5"></a><span class="nx">nums</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-20-1" name="__codelineno-20-1" href="#__codelineno-20-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-20-2" name="__codelineno-20-2" href="#__codelineno-20-2"></a><span class="kt">int</span><span class="w"> </span><span class="kt">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="m">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-20-3" name="__codelineno-20-3" href="#__codelineno-20-3"></a>
|
||
<a id="__codelineno-20-4" name="__codelineno-20-4" href="#__codelineno-20-4"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-20-5" name="__codelineno-20-5" href="#__codelineno-20-5"></a><span class="n">nums</span><span class="p">[</span><span class="m">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-21-1" name="__codelineno-21-1" href="#__codelineno-21-1"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-21-2" name="__codelineno-21-2" href="#__codelineno-21-2"></a><span class="kd">let</span><span class="w"> </span><span class="n">num</span>: <span class="kt">i32</span> <span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-21-3" name="__codelineno-21-3" href="#__codelineno-21-3"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-21-4" name="__codelineno-21-4" href="#__codelineno-21-4"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-22-1" name="__codelineno-22-1" href="#__codelineno-22-1"></a><span class="c1">// C 未提供内置动态数组</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-23-1" name="__codelineno-23-1" href="#__codelineno-23-1"></a><span class="c1">// 访问元素</span>
|
||
<a id="__codelineno-23-2" name="__codelineno-23-2" href="#__codelineno-23-2"></a><span class="kr">var</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">items</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
|
||
<a id="__codelineno-23-3" name="__codelineno-23-3" href="#__codelineno-23-3"></a>
|
||
<a id="__codelineno-23-4" name="__codelineno-23-4" href="#__codelineno-23-4"></a><span class="c1">// 更新元素</span>
|
||
<a id="__codelineno-23-5" name="__codelineno-23-5" href="#__codelineno-23-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">items</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0 </span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<h3 id="3">3. 插入与删除元素<a class="headerlink" href="#3" title="Permanent link">¶</a></h3>
|
||
<p>相较于数组，列表可以自由地添加与删除元素。在列表尾部添加元素的时间复杂度为 <span class="arithmatex">\(O(1)\)</span> ，但插入和删除元素的效率仍与数组相同，时间复杂度为 <span class="arithmatex">\(O(n)\)</span> 。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="3:12"><input checked="checked" id="__tabbed_3_1" name="__tabbed_3" type="radio" /><input id="__tabbed_3_2" name="__tabbed_3" type="radio" /><input id="__tabbed_3_3" name="__tabbed_3" type="radio" /><input id="__tabbed_3_4" name="__tabbed_3" type="radio" /><input id="__tabbed_3_5" name="__tabbed_3" type="radio" /><input id="__tabbed_3_6" name="__tabbed_3" type="radio" /><input id="__tabbed_3_7" name="__tabbed_3" type="radio" /><input id="__tabbed_3_8" name="__tabbed_3" type="radio" /><input id="__tabbed_3_9" name="__tabbed_3" type="radio" /><input id="__tabbed_3_10" name="__tabbed_3" type="radio" /><input id="__tabbed_3_11" name="__tabbed_3" type="radio" /><input id="__tabbed_3_12" name="__tabbed_3" type="radio" /><div class="tabbed-labels"><label for="__tabbed_3_1">Python</label><label for="__tabbed_3_2">C++</label><label for="__tabbed_3_3">Java</label><label for="__tabbed_3_4">C#</label><label for="__tabbed_3_5">Go</label><label for="__tabbed_3_6">Swift</label><label for="__tabbed_3_7">JS</label><label for="__tabbed_3_8">TS</label><label for="__tabbed_3_9">Dart</label><label for="__tabbed_3_10">Rust</label><label for="__tabbed_3_11">C</label><label for="__tabbed_3_12">Zig</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-24-1" name="__codelineno-24-1" href="#__codelineno-24-1"></a><span class="c1"># 清空列表</span>
|
||
<a id="__codelineno-24-2" name="__codelineno-24-2" href="#__codelineno-24-2"></a><span class="n">nums</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
|
||
<a id="__codelineno-24-3" name="__codelineno-24-3" href="#__codelineno-24-3"></a>
|
||
<a id="__codelineno-24-4" name="__codelineno-24-4" href="#__codelineno-24-4"></a><span class="c1"># 尾部添加元素</span>
|
||
<a id="__codelineno-24-5" name="__codelineno-24-5" href="#__codelineno-24-5"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||
<a id="__codelineno-24-6" name="__codelineno-24-6" href="#__codelineno-24-6"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
|
||
<a id="__codelineno-24-7" name="__codelineno-24-7" href="#__codelineno-24-7"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
|
||
<a id="__codelineno-24-8" name="__codelineno-24-8" href="#__codelineno-24-8"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
|
||
<a id="__codelineno-24-9" name="__codelineno-24-9" href="#__codelineno-24-9"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
|
||
<a id="__codelineno-24-10" name="__codelineno-24-10" href="#__codelineno-24-10"></a>
|
||
<a id="__codelineno-24-11" name="__codelineno-24-11" href="#__codelineno-24-11"></a><span class="c1"># 中间插入元素</span>
|
||
<a id="__codelineno-24-12" name="__codelineno-24-12" href="#__codelineno-24-12"></a><span class="n">nums</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">6</span><span class="p">)</span> <span class="c1"># 在索引 3 处插入数字 6</span>
|
||
<a id="__codelineno-24-13" name="__codelineno-24-13" href="#__codelineno-24-13"></a>
|
||
<a id="__codelineno-24-14" name="__codelineno-24-14" href="#__codelineno-24-14"></a><span class="c1"># 删除元素</span>
|
||
<a id="__codelineno-24-15" name="__codelineno-24-15" href="#__codelineno-24-15"></a><span class="n">nums</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span> <span class="c1"># 删除索引 3 处的元素</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a>
|
||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
|
||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
|
||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
|
||
<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
|
||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a>
|
||
<a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">begin</span><span class="p">()</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
|
||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a>
|
||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">erase</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">begin</span><span class="p">()</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-26-1" name="__codelineno-26-1" href="#__codelineno-26-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-26-2" name="__codelineno-26-2" href="#__codelineno-26-2"></a><span class="n">nums</span><span class="p">.</span><span class="na">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-26-3" name="__codelineno-26-3" href="#__codelineno-26-3"></a>
|
||
<a id="__codelineno-26-4" name="__codelineno-26-4" href="#__codelineno-26-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-26-5" name="__codelineno-26-5" href="#__codelineno-26-5"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
|
||
<a id="__codelineno-26-6" name="__codelineno-26-6" href="#__codelineno-26-6"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
||
<a id="__codelineno-26-7" name="__codelineno-26-7" href="#__codelineno-26-7"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
|
||
<a id="__codelineno-26-8" name="__codelineno-26-8" href="#__codelineno-26-8"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
|
||
<a id="__codelineno-26-9" name="__codelineno-26-9" href="#__codelineno-26-9"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
|
||
<a id="__codelineno-26-10" name="__codelineno-26-10" href="#__codelineno-26-10"></a>
|
||
<a id="__codelineno-26-11" name="__codelineno-26-11" href="#__codelineno-26-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-26-12" name="__codelineno-26-12" href="#__codelineno-26-12"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
|
||
<a id="__codelineno-26-13" name="__codelineno-26-13" href="#__codelineno-26-13"></a>
|
||
<a id="__codelineno-26-14" name="__codelineno-26-14" href="#__codelineno-26-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-26-15" name="__codelineno-26-15" href="#__codelineno-26-15"></a><span class="n">nums</span><span class="p">.</span><span class="na">remove</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-27-1" name="__codelineno-27-1" href="#__codelineno-27-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-27-2" name="__codelineno-27-2" href="#__codelineno-27-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">Clear</span><span class="p">();</span>
|
||
<a id="__codelineno-27-3" name="__codelineno-27-3" href="#__codelineno-27-3"></a>
|
||
<a id="__codelineno-27-4" name="__codelineno-27-4" href="#__codelineno-27-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-27-5" name="__codelineno-27-5" href="#__codelineno-27-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">1</span><span class="p">);</span>
|
||
<a id="__codelineno-27-6" name="__codelineno-27-6" href="#__codelineno-27-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">3</span><span class="p">);</span>
|
||
<a id="__codelineno-27-7" name="__codelineno-27-7" href="#__codelineno-27-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">2</span><span class="p">);</span>
|
||
<a id="__codelineno-27-8" name="__codelineno-27-8" href="#__codelineno-27-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">5</span><span class="p">);</span>
|
||
<a id="__codelineno-27-9" name="__codelineno-27-9" href="#__codelineno-27-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">4</span><span class="p">);</span>
|
||
<a id="__codelineno-27-10" name="__codelineno-27-10" href="#__codelineno-27-10"></a>
|
||
<a id="__codelineno-27-11" name="__codelineno-27-11" href="#__codelineno-27-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-27-12" name="__codelineno-27-12" href="#__codelineno-27-12"></a><span class="n">nums</span><span class="p">.</span><span class="n">Insert</span><span class="p">(</span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">6</span><span class="p">);</span>
|
||
<a id="__codelineno-27-13" name="__codelineno-27-13" href="#__codelineno-27-13"></a>
|
||
<a id="__codelineno-27-14" name="__codelineno-27-14" href="#__codelineno-27-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-27-15" name="__codelineno-27-15" href="#__codelineno-27-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">RemoveAt</span><span class="p">(</span><span class="m">3</span><span class="p">);</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-28-1" name="__codelineno-28-1" href="#__codelineno-28-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-28-2" name="__codelineno-28-2" href="#__codelineno-28-2"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="kc">nil</span>
|
||
<a id="__codelineno-28-3" name="__codelineno-28-3" href="#__codelineno-28-3"></a>
|
||
<a id="__codelineno-28-4" name="__codelineno-28-4" href="#__codelineno-28-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-28-5" name="__codelineno-28-5" href="#__codelineno-28-5"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span>
|
||
<a id="__codelineno-28-6" name="__codelineno-28-6" href="#__codelineno-28-6"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span>
|
||
<a id="__codelineno-28-7" name="__codelineno-28-7" href="#__codelineno-28-7"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">)</span>
|
||
<a id="__codelineno-28-8" name="__codelineno-28-8" href="#__codelineno-28-8"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">)</span>
|
||
<a id="__codelineno-28-9" name="__codelineno-28-9" href="#__codelineno-28-9"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">)</span>
|
||
<a id="__codelineno-28-10" name="__codelineno-28-10" href="#__codelineno-28-10"></a>
|
||
<a id="__codelineno-28-11" name="__codelineno-28-11" href="#__codelineno-28-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-28-12" name="__codelineno-28-12" href="#__codelineno-28-12"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">[:</span><span class="mi">3</span><span class="p">],</span><span class="w"> </span><span class="nb">append</span><span class="p">([]</span><span class="kt">int</span><span class="p">{</span><span class="mi">6</span><span class="p">},</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mi">3</span><span class="p">:]</span><span class="o">...</span><span class="p">)</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
|
||
<a id="__codelineno-28-13" name="__codelineno-28-13" href="#__codelineno-28-13"></a>
|
||
<a id="__codelineno-28-14" name="__codelineno-28-14" href="#__codelineno-28-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-28-15" name="__codelineno-28-15" href="#__codelineno-28-15"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">[:</span><span class="mi">3</span><span class="p">],</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mi">4</span><span class="p">:]</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-29-1" name="__codelineno-29-1" href="#__codelineno-29-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-29-2" name="__codelineno-29-2" href="#__codelineno-29-2"></a><span class="n">nums</span><span class="p">.</span><span class="bp">removeAll</span><span class="p">()</span>
|
||
<a id="__codelineno-29-3" name="__codelineno-29-3" href="#__codelineno-29-3"></a>
|
||
<a id="__codelineno-29-4" name="__codelineno-29-4" href="#__codelineno-29-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-29-5" name="__codelineno-29-5" href="#__codelineno-29-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||
<a id="__codelineno-29-6" name="__codelineno-29-6" href="#__codelineno-29-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
|
||
<a id="__codelineno-29-7" name="__codelineno-29-7" href="#__codelineno-29-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
|
||
<a id="__codelineno-29-8" name="__codelineno-29-8" href="#__codelineno-29-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
|
||
<a id="__codelineno-29-9" name="__codelineno-29-9" href="#__codelineno-29-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
|
||
<a id="__codelineno-29-10" name="__codelineno-29-10" href="#__codelineno-29-10"></a>
|
||
<a id="__codelineno-29-11" name="__codelineno-29-11" href="#__codelineno-29-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-29-12" name="__codelineno-29-12" href="#__codelineno-29-12"></a><span class="n">nums</span><span class="p">.</span><span class="bp">insert</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="n">at</span><span class="p">:</span> <span class="mi">3</span><span class="p">)</span> <span class="c1">// 在索引 3 处插入数字 6</span>
|
||
<a id="__codelineno-29-13" name="__codelineno-29-13" href="#__codelineno-29-13"></a>
|
||
<a id="__codelineno-29-14" name="__codelineno-29-14" href="#__codelineno-29-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-29-15" name="__codelineno-29-15" href="#__codelineno-29-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">remove</span><span class="p">(</span><span class="n">at</span><span class="p">:</span> <span class="mi">3</span><span class="p">)</span> <span class="c1">// 删除索引 3 处的元素</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-30-1" name="__codelineno-30-1" href="#__codelineno-30-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-30-2" name="__codelineno-30-2" href="#__codelineno-30-2"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-30-3" name="__codelineno-30-3" href="#__codelineno-30-3"></a>
|
||
<a id="__codelineno-30-4" name="__codelineno-30-4" href="#__codelineno-30-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-30-5" name="__codelineno-30-5" href="#__codelineno-30-5"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">1</span><span class="p">);</span>
|
||
<a id="__codelineno-30-6" name="__codelineno-30-6" href="#__codelineno-30-6"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">3</span><span class="p">);</span>
|
||
<a id="__codelineno-30-7" name="__codelineno-30-7" href="#__codelineno-30-7"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">2</span><span class="p">);</span>
|
||
<a id="__codelineno-30-8" name="__codelineno-30-8" href="#__codelineno-30-8"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">5</span><span class="p">);</span>
|
||
<a id="__codelineno-30-9" name="__codelineno-30-9" href="#__codelineno-30-9"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">4</span><span class="p">);</span>
|
||
<a id="__codelineno-30-10" name="__codelineno-30-10" href="#__codelineno-30-10"></a>
|
||
<a id="__codelineno-30-11" name="__codelineno-30-11" href="#__codelineno-30-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-30-12" name="__codelineno-30-12" href="#__codelineno-30-12"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">0</span><span class="p">,</span><span class="w"> </span><span class="mf">6</span><span class="p">);</span>
|
||
<a id="__codelineno-30-13" name="__codelineno-30-13" href="#__codelineno-30-13"></a>
|
||
<a id="__codelineno-30-14" name="__codelineno-30-14" href="#__codelineno-30-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-30-15" name="__codelineno-30-15" href="#__codelineno-30-15"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">1</span><span class="p">);</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-31-1" name="__codelineno-31-1" href="#__codelineno-31-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-31-2" name="__codelineno-31-2" href="#__codelineno-31-2"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-31-3" name="__codelineno-31-3" href="#__codelineno-31-3"></a>
|
||
<a id="__codelineno-31-4" name="__codelineno-31-4" href="#__codelineno-31-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-31-5" name="__codelineno-31-5" href="#__codelineno-31-5"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">1</span><span class="p">);</span>
|
||
<a id="__codelineno-31-6" name="__codelineno-31-6" href="#__codelineno-31-6"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">3</span><span class="p">);</span>
|
||
<a id="__codelineno-31-7" name="__codelineno-31-7" href="#__codelineno-31-7"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">2</span><span class="p">);</span>
|
||
<a id="__codelineno-31-8" name="__codelineno-31-8" href="#__codelineno-31-8"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">5</span><span class="p">);</span>
|
||
<a id="__codelineno-31-9" name="__codelineno-31-9" href="#__codelineno-31-9"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">4</span><span class="p">);</span>
|
||
<a id="__codelineno-31-10" name="__codelineno-31-10" href="#__codelineno-31-10"></a>
|
||
<a id="__codelineno-31-11" name="__codelineno-31-11" href="#__codelineno-31-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-31-12" name="__codelineno-31-12" href="#__codelineno-31-12"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">0</span><span class="p">,</span><span class="w"> </span><span class="mf">6</span><span class="p">);</span>
|
||
<a id="__codelineno-31-13" name="__codelineno-31-13" href="#__codelineno-31-13"></a>
|
||
<a id="__codelineno-31-14" name="__codelineno-31-14" href="#__codelineno-31-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-31-15" name="__codelineno-31-15" href="#__codelineno-31-15"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">1</span><span class="p">);</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-32-1" name="__codelineno-32-1" href="#__codelineno-32-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-32-2" name="__codelineno-32-2" href="#__codelineno-32-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-32-3" name="__codelineno-32-3" href="#__codelineno-32-3"></a>
|
||
<a id="__codelineno-32-4" name="__codelineno-32-4" href="#__codelineno-32-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-32-5" name="__codelineno-32-5" href="#__codelineno-32-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">1</span><span class="p">);</span>
|
||
<a id="__codelineno-32-6" name="__codelineno-32-6" href="#__codelineno-32-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">3</span><span class="p">);</span>
|
||
<a id="__codelineno-32-7" name="__codelineno-32-7" href="#__codelineno-32-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">2</span><span class="p">);</span>
|
||
<a id="__codelineno-32-8" name="__codelineno-32-8" href="#__codelineno-32-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">5</span><span class="p">);</span>
|
||
<a id="__codelineno-32-9" name="__codelineno-32-9" href="#__codelineno-32-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">4</span><span class="p">);</span>
|
||
<a id="__codelineno-32-10" name="__codelineno-32-10" href="#__codelineno-32-10"></a>
|
||
<a id="__codelineno-32-11" name="__codelineno-32-11" href="#__codelineno-32-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-32-12" name="__codelineno-32-12" href="#__codelineno-32-12"></a><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
|
||
<a id="__codelineno-32-13" name="__codelineno-32-13" href="#__codelineno-32-13"></a>
|
||
<a id="__codelineno-32-14" name="__codelineno-32-14" href="#__codelineno-32-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-32-15" name="__codelineno-32-15" href="#__codelineno-32-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">removeAt</span><span class="p">(</span><span class="m">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-33-1" name="__codelineno-33-1" href="#__codelineno-33-1"></a><span class="cm">/* 清空列表 */</span>
|
||
<a id="__codelineno-33-2" name="__codelineno-33-2" href="#__codelineno-33-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-33-3" name="__codelineno-33-3" href="#__codelineno-33-3"></a>
|
||
<a id="__codelineno-33-4" name="__codelineno-33-4" href="#__codelineno-33-4"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-33-5" name="__codelineno-33-5" href="#__codelineno-33-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
|
||
<a id="__codelineno-33-6" name="__codelineno-33-6" href="#__codelineno-33-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
||
<a id="__codelineno-33-7" name="__codelineno-33-7" href="#__codelineno-33-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
|
||
<a id="__codelineno-33-8" name="__codelineno-33-8" href="#__codelineno-33-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
|
||
<a id="__codelineno-33-9" name="__codelineno-33-9" href="#__codelineno-33-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
|
||
<a id="__codelineno-33-10" name="__codelineno-33-10" href="#__codelineno-33-10"></a>
|
||
<a id="__codelineno-33-11" name="__codelineno-33-11" href="#__codelineno-33-11"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-33-12" name="__codelineno-33-12" href="#__codelineno-33-12"></a><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
|
||
<a id="__codelineno-33-13" name="__codelineno-33-13" href="#__codelineno-33-13"></a>
|
||
<a id="__codelineno-33-14" name="__codelineno-33-14" href="#__codelineno-33-14"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-33-15" name="__codelineno-33-15" href="#__codelineno-33-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">remove</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-34-1" name="__codelineno-34-1" href="#__codelineno-34-1"></a><span class="c1">// C 未提供内置动态数组</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-35-1" name="__codelineno-35-1" href="#__codelineno-35-1"></a><span class="c1">// 清空列表</span>
|
||
<a id="__codelineno-35-2" name="__codelineno-35-2" href="#__codelineno-35-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">clearRetainingCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-35-3" name="__codelineno-35-3" href="#__codelineno-35-3"></a>
|
||
<a id="__codelineno-35-4" name="__codelineno-35-4" href="#__codelineno-35-4"></a><span class="c1">// 尾部添加元素</span>
|
||
<a id="__codelineno-35-5" name="__codelineno-35-5" href="#__codelineno-35-5"></a><span class="k">try</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
|
||
<a id="__codelineno-35-6" name="__codelineno-35-6" href="#__codelineno-35-6"></a><span class="k">try</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
||
<a id="__codelineno-35-7" name="__codelineno-35-7" href="#__codelineno-35-7"></a><span class="k">try</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
|
||
<a id="__codelineno-35-8" name="__codelineno-35-8" href="#__codelineno-35-8"></a><span class="k">try</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
|
||
<a id="__codelineno-35-9" name="__codelineno-35-9" href="#__codelineno-35-9"></a><span class="k">try</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
|
||
<a id="__codelineno-35-10" name="__codelineno-35-10" href="#__codelineno-35-10"></a>
|
||
<a id="__codelineno-35-11" name="__codelineno-35-11" href="#__codelineno-35-11"></a><span class="c1">// 中间插入元素</span>
|
||
<a id="__codelineno-35-12" name="__codelineno-35-12" href="#__codelineno-35-12"></a><span class="k">try</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
|
||
<a id="__codelineno-35-13" name="__codelineno-35-13" href="#__codelineno-35-13"></a>
|
||
<a id="__codelineno-35-14" name="__codelineno-35-14" href="#__codelineno-35-14"></a><span class="c1">// 删除元素</span>
|
||
<a id="__codelineno-35-15" name="__codelineno-35-15" href="#__codelineno-35-15"></a><span class="n">_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">orderedRemove</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<h3 id="4">4. 遍历列表<a class="headerlink" href="#4" title="Permanent link">¶</a></h3>
|
||
<p>与数组一样，列表可以根据索引遍历，也可以直接遍历各元素。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="4:12"><input checked="checked" id="__tabbed_4_1" name="__tabbed_4" type="radio" /><input id="__tabbed_4_2" name="__tabbed_4" type="radio" /><input id="__tabbed_4_3" name="__tabbed_4" type="radio" /><input id="__tabbed_4_4" name="__tabbed_4" type="radio" /><input id="__tabbed_4_5" name="__tabbed_4" type="radio" /><input id="__tabbed_4_6" name="__tabbed_4" type="radio" /><input id="__tabbed_4_7" name="__tabbed_4" type="radio" /><input id="__tabbed_4_8" name="__tabbed_4" type="radio" /><input id="__tabbed_4_9" name="__tabbed_4" type="radio" /><input id="__tabbed_4_10" name="__tabbed_4" type="radio" /><input id="__tabbed_4_11" name="__tabbed_4" type="radio" /><input id="__tabbed_4_12" name="__tabbed_4" type="radio" /><div class="tabbed-labels"><label for="__tabbed_4_1">Python</label><label for="__tabbed_4_2">C++</label><label for="__tabbed_4_3">Java</label><label for="__tabbed_4_4">C#</label><label for="__tabbed_4_5">Go</label><label for="__tabbed_4_6">Swift</label><label for="__tabbed_4_7">JS</label><label for="__tabbed_4_8">TS</label><label for="__tabbed_4_9">Dart</label><label for="__tabbed_4_10">Rust</label><label for="__tabbed_4_11">C</label><label for="__tabbed_4_12">Zig</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-36-1" name="__codelineno-36-1" href="#__codelineno-36-1"></a><span class="c1"># 通过索引遍历列表</span>
|
||
<a id="__codelineno-36-2" name="__codelineno-36-2" href="#__codelineno-36-2"></a><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
|
||
<a id="__codelineno-36-3" name="__codelineno-36-3" href="#__codelineno-36-3"></a><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)):</span>
|
||
<a id="__codelineno-36-4" name="__codelineno-36-4" href="#__codelineno-36-4"></a> <span class="n">count</span> <span class="o">+=</span> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||
<a id="__codelineno-36-5" name="__codelineno-36-5" href="#__codelineno-36-5"></a>
|
||
<a id="__codelineno-36-6" name="__codelineno-36-6" href="#__codelineno-36-6"></a><span class="c1"># 直接遍历列表元素</span>
|
||
<a id="__codelineno-36-7" name="__codelineno-36-7" href="#__codelineno-36-7"></a><span class="k">for</span> <span class="n">num</span> <span class="ow">in</span> <span class="n">nums</span><span class="p">:</span>
|
||
<a id="__codelineno-36-8" name="__codelineno-36-8" href="#__codelineno-36-8"></a> <span class="n">count</span> <span class="o">+=</span> <span class="n">num</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-37-1" name="__codelineno-37-1" href="#__codelineno-37-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
||
<a id="__codelineno-37-2" name="__codelineno-37-2" href="#__codelineno-37-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-37-3" name="__codelineno-37-3" href="#__codelineno-37-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-37-4" name="__codelineno-37-4" href="#__codelineno-37-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-37-5" name="__codelineno-37-5" href="#__codelineno-37-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-37-6" name="__codelineno-37-6" href="#__codelineno-37-6"></a>
|
||
<a id="__codelineno-37-7" name="__codelineno-37-7" href="#__codelineno-37-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
||
<a id="__codelineno-37-8" name="__codelineno-37-8" href="#__codelineno-37-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-37-9" name="__codelineno-37-9" href="#__codelineno-37-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-37-10" name="__codelineno-37-10" href="#__codelineno-37-10"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-37-11" name="__codelineno-37-11" href="#__codelineno-37-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-38-1" name="__codelineno-38-1" href="#__codelineno-38-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
||
<a id="__codelineno-38-2" name="__codelineno-38-2" href="#__codelineno-38-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-38-3" name="__codelineno-38-3" href="#__codelineno-38-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="na">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="na">get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
||
<a id="__codelineno-38-5" name="__codelineno-38-5" href="#__codelineno-38-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-38-6" name="__codelineno-38-6" href="#__codelineno-38-6"></a>
|
||
<a id="__codelineno-38-7" name="__codelineno-38-7" href="#__codelineno-38-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
||
<a id="__codelineno-38-8" name="__codelineno-38-8" href="#__codelineno-38-8"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-38-9" name="__codelineno-38-9" href="#__codelineno-38-9"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-38-10" name="__codelineno-38-10" href="#__codelineno-38-10"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
||
<a id="__codelineno-39-2" name="__codelineno-39-2" href="#__codelineno-39-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span>
|
||
<a id="__codelineno-39-3" name="__codelineno-39-3" href="#__codelineno-39-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">Count</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-39-4" name="__codelineno-39-4" href="#__codelineno-39-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-39-5" name="__codelineno-39-5" href="#__codelineno-39-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-39-6" name="__codelineno-39-6" href="#__codelineno-39-6"></a>
|
||
<a id="__codelineno-39-7" name="__codelineno-39-7" href="#__codelineno-39-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
||
<a id="__codelineno-39-8" name="__codelineno-39-8" href="#__codelineno-39-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span>
|
||
<a id="__codelineno-39-9" name="__codelineno-39-9" href="#__codelineno-39-9"></a><span class="k">foreach</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-39-10" name="__codelineno-39-10" href="#__codelineno-39-10"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-39-11" name="__codelineno-39-11" href="#__codelineno-39-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-40-1" name="__codelineno-40-1" href="#__codelineno-40-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
||
<a id="__codelineno-40-2" name="__codelineno-40-2" href="#__codelineno-40-2"></a><span class="nx">count</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-40-3" name="__codelineno-40-3" href="#__codelineno-40-3"></a><span class="k">for</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="nb">len</span><span class="p">(</span><span class="nx">nums</span><span class="p">);</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-40-4" name="__codelineno-40-4" href="#__codelineno-40-4"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span>
|
||
<a id="__codelineno-40-5" name="__codelineno-40-5" href="#__codelineno-40-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-40-6" name="__codelineno-40-6" href="#__codelineno-40-6"></a>
|
||
<a id="__codelineno-40-7" name="__codelineno-40-7" href="#__codelineno-40-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
||
<a id="__codelineno-40-8" name="__codelineno-40-8" href="#__codelineno-40-8"></a><span class="nx">count</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-40-9" name="__codelineno-40-9" href="#__codelineno-40-9"></a><span class="k">for</span><span class="w"> </span><span class="nx">_</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="k">range</span><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-40-10" name="__codelineno-40-10" href="#__codelineno-40-10"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-40-11" name="__codelineno-40-11" href="#__codelineno-40-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-41-1" name="__codelineno-41-1" href="#__codelineno-41-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
||
<a id="__codelineno-41-2" name="__codelineno-41-2" href="#__codelineno-41-2"></a><span class="kd">var</span> <span class="nv">count</span> <span class="p">=</span> <span class="mi">0</span>
|
||
<a id="__codelineno-41-3" name="__codelineno-41-3" href="#__codelineno-41-3"></a><span class="k">for</span> <span class="n">i</span> <span class="k">in</span> <span class="n">nums</span><span class="p">.</span><span class="bp">indices</span> <span class="p">{</span>
|
||
<a id="__codelineno-41-4" name="__codelineno-41-4" href="#__codelineno-41-4"></a> <span class="bp">count</span> <span class="o">+=</span> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||
<a id="__codelineno-41-5" name="__codelineno-41-5" href="#__codelineno-41-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-41-6" name="__codelineno-41-6" href="#__codelineno-41-6"></a>
|
||
<a id="__codelineno-41-7" name="__codelineno-41-7" href="#__codelineno-41-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
||
<a id="__codelineno-41-8" name="__codelineno-41-8" href="#__codelineno-41-8"></a><span class="bp">count</span> <span class="p">=</span> <span class="mi">0</span>
|
||
<a id="__codelineno-41-9" name="__codelineno-41-9" href="#__codelineno-41-9"></a><span class="k">for</span> <span class="n">num</span> <span class="k">in</span> <span class="n">nums</span> <span class="p">{</span>
|
||
<a id="__codelineno-41-10" name="__codelineno-41-10" href="#__codelineno-41-10"></a> <span class="bp">count</span> <span class="o">+=</span> <span class="n">num</span>
|
||
<a id="__codelineno-41-11" name="__codelineno-41-11" href="#__codelineno-41-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-42-1" name="__codelineno-42-1" href="#__codelineno-42-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
||
<a id="__codelineno-42-2" name="__codelineno-42-2" href="#__codelineno-42-2"></a><span class="kd">let</span><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-42-3" name="__codelineno-42-3" href="#__codelineno-42-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-42-4" name="__codelineno-42-4" href="#__codelineno-42-4"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">];</span>
|
||
<a id="__codelineno-42-5" name="__codelineno-42-5" href="#__codelineno-42-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-42-6" name="__codelineno-42-6" href="#__codelineno-42-6"></a>
|
||
<a id="__codelineno-42-7" name="__codelineno-42-7" href="#__codelineno-42-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
||
<a id="__codelineno-42-8" name="__codelineno-42-8" href="#__codelineno-42-8"></a><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-42-9" name="__codelineno-42-9" href="#__codelineno-42-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-42-10" name="__codelineno-42-10" href="#__codelineno-42-10"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-42-11" name="__codelineno-42-11" href="#__codelineno-42-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-43-1" name="__codelineno-43-1" href="#__codelineno-43-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
||
<a id="__codelineno-43-2" name="__codelineno-43-2" href="#__codelineno-43-2"></a><span class="kd">let</span><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-43-3" name="__codelineno-43-3" href="#__codelineno-43-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-43-4" name="__codelineno-43-4" href="#__codelineno-43-4"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">];</span>
|
||
<a id="__codelineno-43-5" name="__codelineno-43-5" href="#__codelineno-43-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-43-6" name="__codelineno-43-6" href="#__codelineno-43-6"></a>
|
||
<a id="__codelineno-43-7" name="__codelineno-43-7" href="#__codelineno-43-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
||
<a id="__codelineno-43-8" name="__codelineno-43-8" href="#__codelineno-43-8"></a><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-43-9" name="__codelineno-43-9" href="#__codelineno-43-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-43-10" name="__codelineno-43-10" href="#__codelineno-43-10"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-43-11" name="__codelineno-43-11" href="#__codelineno-43-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-44-1" name="__codelineno-44-1" href="#__codelineno-44-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
||
<a id="__codelineno-44-2" name="__codelineno-44-2" href="#__codelineno-44-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span>
|
||
<a id="__codelineno-44-3" name="__codelineno-44-3" href="#__codelineno-44-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">length</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-44-4" name="__codelineno-44-4" href="#__codelineno-44-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-44-5" name="__codelineno-44-5" href="#__codelineno-44-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-44-6" name="__codelineno-44-6" href="#__codelineno-44-6"></a>
|
||
<a id="__codelineno-44-7" name="__codelineno-44-7" href="#__codelineno-44-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
||
<a id="__codelineno-44-8" name="__codelineno-44-8" href="#__codelineno-44-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span>
|
||
<a id="__codelineno-44-9" name="__codelineno-44-9" href="#__codelineno-44-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="kt">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-44-10" name="__codelineno-44-10" href="#__codelineno-44-10"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="kt">num</span><span class="p">;</span>
|
||
<a id="__codelineno-44-11" name="__codelineno-44-11" href="#__codelineno-44-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-45-1" name="__codelineno-45-1" href="#__codelineno-45-1"></a><span class="c1">// 通过索引遍历列表</span>
|
||
<a id="__codelineno-45-2" name="__codelineno-45-2" href="#__codelineno-45-2"></a><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">_count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-45-3" name="__codelineno-45-3" href="#__codelineno-45-3"></a><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="mi">0</span><span class="o">..</span><span class="n">nums</span><span class="p">.</span><span class="n">len</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-45-4" name="__codelineno-45-4" href="#__codelineno-45-4"></a><span class="w"> </span><span class="n">_count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-45-5" name="__codelineno-45-5" href="#__codelineno-45-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-45-6" name="__codelineno-45-6" href="#__codelineno-45-6"></a>
|
||
<a id="__codelineno-45-7" name="__codelineno-45-7" href="#__codelineno-45-7"></a><span class="c1">// 直接遍历列表元素</span>
|
||
<a id="__codelineno-45-8" name="__codelineno-45-8" href="#__codelineno-45-8"></a><span class="n">_count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-45-9" name="__codelineno-45-9" href="#__codelineno-45-9"></a><span class="k">for</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="o">&</span><span class="n">nums</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-45-10" name="__codelineno-45-10" href="#__codelineno-45-10"></a><span class="w"> </span><span class="n">_count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-45-11" name="__codelineno-45-11" href="#__codelineno-45-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-46-1" name="__codelineno-46-1" href="#__codelineno-46-1"></a><span class="c1">// C 未提供内置动态数组</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-47-1" name="__codelineno-47-1" href="#__codelineno-47-1"></a><span class="c1">// 通过索引遍历列表</span>
|
||
<a id="__codelineno-47-2" name="__codelineno-47-2" href="#__codelineno-47-2"></a><span class="kr">var</span><span class="w"> </span><span class="n">count</span><span class="o">:</span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-47-3" name="__codelineno-47-3" href="#__codelineno-47-3"></a><span class="kr">var</span><span class="w"> </span><span class="n">i</span><span class="o">:</span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-47-4" name="__codelineno-47-4" href="#__codelineno-47-4"></a><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">items</span><span class="p">.</span><span class="n">len</span><span class="p">)</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-47-5" name="__codelineno-47-5" href="#__codelineno-47-5"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-47-6" name="__codelineno-47-6" href="#__codelineno-47-6"></a><span class="p">}</span>
|
||
<a id="__codelineno-47-7" name="__codelineno-47-7" href="#__codelineno-47-7"></a>
|
||
<a id="__codelineno-47-8" name="__codelineno-47-8" href="#__codelineno-47-8"></a><span class="c1">// 直接遍历列表元素</span>
|
||
<a id="__codelineno-47-9" name="__codelineno-47-9" href="#__codelineno-47-9"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-47-10" name="__codelineno-47-10" href="#__codelineno-47-10"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">items</span><span class="p">)</span><span class="w"> </span><span class="o">|</span><span class="n">num</span><span class="o">|</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-47-11" name="__codelineno-47-11" href="#__codelineno-47-11"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-47-12" name="__codelineno-47-12" href="#__codelineno-47-12"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<h3 id="5">5. 拼接列表<a class="headerlink" href="#5" title="Permanent link">¶</a></h3>
|
||
<p>给定一个新列表 <code>nums1</code> ，我们可以将该列表拼接到原列表的尾部。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="5:12"><input checked="checked" id="__tabbed_5_1" name="__tabbed_5" type="radio" /><input id="__tabbed_5_2" name="__tabbed_5" type="radio" /><input id="__tabbed_5_3" name="__tabbed_5" type="radio" /><input id="__tabbed_5_4" name="__tabbed_5" type="radio" /><input id="__tabbed_5_5" name="__tabbed_5" type="radio" /><input id="__tabbed_5_6" name="__tabbed_5" type="radio" /><input id="__tabbed_5_7" name="__tabbed_5" type="radio" /><input id="__tabbed_5_8" name="__tabbed_5" type="radio" /><input id="__tabbed_5_9" name="__tabbed_5" type="radio" /><input id="__tabbed_5_10" name="__tabbed_5" type="radio" /><input id="__tabbed_5_11" name="__tabbed_5" type="radio" /><input id="__tabbed_5_12" name="__tabbed_5" type="radio" /><div class="tabbed-labels"><label for="__tabbed_5_1">Python</label><label for="__tabbed_5_2">C++</label><label for="__tabbed_5_3">Java</label><label for="__tabbed_5_4">C#</label><label for="__tabbed_5_5">Go</label><label for="__tabbed_5_6">Swift</label><label for="__tabbed_5_7">JS</label><label for="__tabbed_5_8">TS</label><label for="__tabbed_5_9">Dart</label><label for="__tabbed_5_10">Rust</label><label for="__tabbed_5_11">C</label><label for="__tabbed_5_12">Zig</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-48-1" name="__codelineno-48-1" href="#__codelineno-48-1"></a><span class="c1"># 拼接两个列表</span>
|
||
<a id="__codelineno-48-2" name="__codelineno-48-2" href="#__codelineno-48-2"></a><span class="n">nums1</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">6</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">]</span>
|
||
<a id="__codelineno-48-3" name="__codelineno-48-3" href="#__codelineno-48-3"></a><span class="n">nums</span> <span class="o">+=</span> <span class="n">nums1</span> <span class="c1"># 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-49-1" name="__codelineno-49-1" href="#__codelineno-49-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-49-2" name="__codelineno-49-2" href="#__codelineno-49-2"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-49-3" name="__codelineno-49-3" href="#__codelineno-49-3"></a><span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
<a id="__codelineno-49-4" name="__codelineno-49-4" href="#__codelineno-49-4"></a><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">end</span><span class="p">(),</span><span class="w"> </span><span class="n">nums1</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span><span class="w"> </span><span class="n">nums1</span><span class="p">.</span><span class="n">end</span><span class="p">());</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-50-1" name="__codelineno-50-1" href="#__codelineno-50-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-50-2" name="__codelineno-50-2" href="#__codelineno-50-2"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">(</span><span class="n">Arrays</span><span class="p">.</span><span class="na">asList</span><span class="p">(</span><span class="k">new</span><span class="w"> </span><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="p">}));</span>
|
||
<a id="__codelineno-50-3" name="__codelineno-50-3" href="#__codelineno-50-3"></a><span class="n">nums</span><span class="p">.</span><span class="na">addAll</span><span class="p">(</span><span class="n">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-51-1" name="__codelineno-51-1" href="#__codelineno-51-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-51-2" name="__codelineno-51-2" href="#__codelineno-51-2"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="m">6</span><span class="p">,</span><span class="w"> </span><span class="m">8</span><span class="p">,</span><span class="w"> </span><span class="m">7</span><span class="p">,</span><span class="w"> </span><span class="m">10</span><span class="p">,</span><span class="w"> </span><span class="m">9</span><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-51-3" name="__codelineno-51-3" href="#__codelineno-51-3"></a><span class="n">nums</span><span class="p">.</span><span class="n">AddRange</span><span class="p">(</span><span class="n">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-52-1" name="__codelineno-52-1" href="#__codelineno-52-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-52-2" name="__codelineno-52-2" href="#__codelineno-52-2"></a><span class="nx">nums1</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">}</span>
|
||
<a id="__codelineno-52-3" name="__codelineno-52-3" href="#__codelineno-52-3"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="nx">nums1</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-53-1" name="__codelineno-53-1" href="#__codelineno-53-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-53-2" name="__codelineno-53-2" href="#__codelineno-53-2"></a><span class="kd">let</span> <span class="nv">nums1</span> <span class="p">=</span> <span class="p">[</span><span class="mi">6</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">]</span>
|
||
<a id="__codelineno-53-3" name="__codelineno-53-3" href="#__codelineno-53-3"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="n">contentsOf</span><span class="p">:</span> <span class="n">nums1</span><span class="p">)</span> <span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-54-1" name="__codelineno-54-1" href="#__codelineno-54-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-54-2" name="__codelineno-54-2" href="#__codelineno-54-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">6</span><span class="p">,</span><span class="w"> </span><span class="mf">8</span><span class="p">,</span><span class="w"> </span><span class="mf">7</span><span class="p">,</span><span class="w"> </span><span class="mf">10</span><span class="p">,</span><span class="w"> </span><span class="mf">9</span><span class="p">];</span>
|
||
<a id="__codelineno-54-3" name="__codelineno-54-3" href="#__codelineno-54-3"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(...</span><span class="nx">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-55-1" name="__codelineno-55-1" href="#__codelineno-55-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-55-2" name="__codelineno-55-2" href="#__codelineno-55-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums1</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">6</span><span class="p">,</span><span class="w"> </span><span class="mf">8</span><span class="p">,</span><span class="w"> </span><span class="mf">7</span><span class="p">,</span><span class="w"> </span><span class="mf">10</span><span class="p">,</span><span class="w"> </span><span class="mf">9</span><span class="p">];</span>
|
||
<a id="__codelineno-55-3" name="__codelineno-55-3" href="#__codelineno-55-3"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(...</span><span class="nx">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-56-1" name="__codelineno-56-1" href="#__codelineno-56-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-56-2" name="__codelineno-56-2" href="#__codelineno-56-2"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="m">6</span><span class="p">,</span><span class="w"> </span><span class="m">8</span><span class="p">,</span><span class="w"> </span><span class="m">7</span><span class="p">,</span><span class="w"> </span><span class="m">10</span><span class="p">,</span><span class="w"> </span><span class="m">9</span><span class="p">];</span>
|
||
<a id="__codelineno-56-3" name="__codelineno-56-3" href="#__codelineno-56-3"></a><span class="n">nums</span><span class="p">.</span><span class="n">addAll</span><span class="p">(</span><span class="n">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-57-1" name="__codelineno-57-1" href="#__codelineno-57-1"></a><span class="cm">/* 拼接两个列表 */</span>
|
||
<a id="__codelineno-57-2" name="__codelineno-57-2" href="#__codelineno-57-2"></a><span class="kd">let</span><span class="w"> </span><span class="n">nums1</span>: <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="fm">vec!</span><span class="p">[</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">];</span>
|
||
<a id="__codelineno-57-3" name="__codelineno-57-3" href="#__codelineno-57-3"></a><span class="n">nums</span><span class="p">.</span><span class="n">extend</span><span class="p">(</span><span class="n">nums1</span><span class="p">);</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-58-1" name="__codelineno-58-1" href="#__codelineno-58-1"></a><span class="c1">// C 未提供内置动态数组</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-59-1" name="__codelineno-59-1" href="#__codelineno-59-1"></a><span class="c1">// 拼接两个列表</span>
|
||
<a id="__codelineno-59-2" name="__codelineno-59-2" href="#__codelineno-59-2"></a><span class="kr">var</span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">ArrayList</span><span class="p">(</span><span class="kt">i32</span><span class="p">).</span><span class="n">init</span><span class="p">(</span><span class="n">std</span><span class="p">.</span><span class="n">heap</span><span class="p">.</span><span class="n">page_allocator</span><span class="p">);</span>
|
||
<a id="__codelineno-59-3" name="__codelineno-59-3" href="#__codelineno-59-3"></a><span class="k">defer</span><span class="w"> </span><span class="n">nums1</span><span class="p">.</span><span class="n">deinit</span><span class="p">();</span>
|
||
<a id="__codelineno-59-4" name="__codelineno-59-4" href="#__codelineno-59-4"></a><span class="k">try</span><span class="w"> </span><span class="n">nums1</span><span class="p">.</span><span class="n">appendSlice</span><span class="p">(</span><span class="o">&</span><span class="p">[</span><span class="n">_</span><span class="p">]</span><span class="kt">i32</span><span class="p">{</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="p">});</span>
|
||
<a id="__codelineno-59-5" name="__codelineno-59-5" href="#__codelineno-59-5"></a><span class="k">try</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">insertSlice</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">items</span><span class="p">.</span><span class="n">len</span><span class="p">,</span><span class="w"> </span><span class="n">nums1</span><span class="p">.</span><span class="n">items</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 nums1 拼接到 nums 之后</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<h3 id="6">6. 排序列表<a class="headerlink" href="#6" title="Permanent link">¶</a></h3>
|
||
<p>完成列表排序后，我们便可以使用在数组类算法题中经常考察的“二分查找”和“双指针”算法。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="6:12"><input checked="checked" id="__tabbed_6_1" name="__tabbed_6" type="radio" /><input id="__tabbed_6_2" name="__tabbed_6" type="radio" /><input id="__tabbed_6_3" name="__tabbed_6" type="radio" /><input id="__tabbed_6_4" name="__tabbed_6" type="radio" /><input id="__tabbed_6_5" name="__tabbed_6" type="radio" /><input id="__tabbed_6_6" name="__tabbed_6" type="radio" /><input id="__tabbed_6_7" name="__tabbed_6" type="radio" /><input id="__tabbed_6_8" name="__tabbed_6" type="radio" /><input id="__tabbed_6_9" name="__tabbed_6" type="radio" /><input id="__tabbed_6_10" name="__tabbed_6" type="radio" /><input id="__tabbed_6_11" name="__tabbed_6" type="radio" /><input id="__tabbed_6_12" name="__tabbed_6" type="radio" /><div class="tabbed-labels"><label for="__tabbed_6_1">Python</label><label for="__tabbed_6_2">C++</label><label for="__tabbed_6_3">Java</label><label for="__tabbed_6_4">C#</label><label for="__tabbed_6_5">Go</label><label for="__tabbed_6_6">Swift</label><label for="__tabbed_6_7">JS</label><label for="__tabbed_6_8">TS</label><label for="__tabbed_6_9">Dart</label><label for="__tabbed_6_10">Rust</label><label for="__tabbed_6_11">C</label><label for="__tabbed_6_12">Zig</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-60-1" name="__codelineno-60-1" href="#__codelineno-60-1"></a><span class="c1"># 排序列表</span>
|
||
<a id="__codelineno-60-2" name="__codelineno-60-2" href="#__codelineno-60-2"></a><span class="n">nums</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span> <span class="c1"># 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-61-1" name="__codelineno-61-1" href="#__codelineno-61-1"></a><span class="cm">/* 排序列表 */</span>
|
||
<a id="__codelineno-61-2" name="__codelineno-61-2" href="#__codelineno-61-2"></a><span class="n">sort</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">end</span><span class="p">());</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-62-1" name="__codelineno-62-1" href="#__codelineno-62-1"></a><span class="cm">/* 排序列表 */</span>
|
||
<a id="__codelineno-62-2" name="__codelineno-62-2" href="#__codelineno-62-2"></a><span class="n">Collections</span><span class="p">.</span><span class="na">sort</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-63-1" name="__codelineno-63-1" href="#__codelineno-63-1"></a><span class="cm">/* 排序列表 */</span>
|
||
<a id="__codelineno-63-2" name="__codelineno-63-2" href="#__codelineno-63-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">Sort</span><span class="p">();</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-64-1" name="__codelineno-64-1" href="#__codelineno-64-1"></a><span class="cm">/* 排序列表 */</span>
|
||
<a id="__codelineno-64-2" name="__codelineno-64-2" href="#__codelineno-64-2"></a><span class="nx">sort</span><span class="p">.</span><span class="nx">Ints</span><span class="p">(</span><span class="nx">nums</span><span class="p">)</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-65-1" name="__codelineno-65-1" href="#__codelineno-65-1"></a><span class="cm">/* 排序列表 */</span>
|
||
<a id="__codelineno-65-2" name="__codelineno-65-2" href="#__codelineno-65-2"></a><span class="n">nums</span><span class="p">.</span><span class="bp">sort</span><span class="p">()</span> <span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-66-1" name="__codelineno-66-1" href="#__codelineno-66-1"></a><span class="cm">/* 排序列表 */</span><span class="w"> </span>
|
||
<a id="__codelineno-66-2" name="__codelineno-66-2" href="#__codelineno-66-2"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">sort</span><span class="p">((</span><span class="nx">a</span><span class="p">,</span><span class="w"> </span><span class="nx">b</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="nx">a</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">b</span><span class="p">);</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-67-1" name="__codelineno-67-1" href="#__codelineno-67-1"></a><span class="cm">/* 排序列表 */</span>
|
||
<a id="__codelineno-67-2" name="__codelineno-67-2" href="#__codelineno-67-2"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">sort</span><span class="p">((</span><span class="nx">a</span><span class="p">,</span><span class="w"> </span><span class="nx">b</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="nx">a</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">b</span><span class="p">);</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-68-1" name="__codelineno-68-1" href="#__codelineno-68-1"></a><span class="cm">/* 排序列表 */</span>
|
||
<a id="__codelineno-68-2" name="__codelineno-68-2" href="#__codelineno-68-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">sort</span><span class="p">();</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-69-1" name="__codelineno-69-1" href="#__codelineno-69-1"></a><span class="cm">/* 排序列表 */</span>
|
||
<a id="__codelineno-69-2" name="__codelineno-69-2" href="#__codelineno-69-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">sort</span><span class="p">();</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-70-1" name="__codelineno-70-1" href="#__codelineno-70-1"></a><span class="c1">// C 未提供内置动态数组</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-71-1" name="__codelineno-71-1" href="#__codelineno-71-1"></a><span class="c1">// 排序列表</span>
|
||
<a id="__codelineno-71-2" name="__codelineno-71-2" href="#__codelineno-71-2"></a><span class="n">std</span><span class="p">.</span><span class="n">sort</span><span class="p">.</span><span class="n">sort</span><span class="p">(</span><span class="kt">i32</span><span class="p">,</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">items</span><span class="p">,</span><span class="w"> </span><span class="p">{},</span><span class="w"> </span><span class="kr">comptime</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">sort</span><span class="p">.</span><span class="n">asc</span><span class="p">(</span><span class="kt">i32</span><span class="p">));</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<h2 id="432">4.3.2 列表实现<a class="headerlink" href="#432" title="Permanent link">¶</a></h2>
|
||
<p>许多编程语言都提供内置的列表，例如 Java、C++、Python 等。它们的实现比较复杂，各个参数的设定也非常有考究，例如初始容量、扩容倍数等。感兴趣的读者可以查阅源码进行学习。</p>
|
||
<p>为了加深对列表工作原理的理解，我们尝试实现一个简易版列表，包括以下三个重点设计。</p>
|
||
<ul>
|
||
<li><strong>初始容量</strong>：选取一个合理的数组初始容量。在本示例中，我们选择 10 作为初始容量。</li>
|
||
<li><strong>数量记录</strong>：声明一个变量 <code>size</code> ，用于记录列表当前元素数量，并随着元素插入和删除实时更新。根据此变量，我们可以定位列表尾部，以及判断是否需要扩容。</li>
|
||
<li><strong>扩容机制</strong>：若插入元素时列表容量已满，则需要进行扩容。首先根据扩容倍数创建一个更大的数组，再将当前数组的所有元素依次移动至新数组。在本示例中，我们规定每次将数组扩容至之前的 2 倍。</li>
|
||
</ul>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="7:12"><input checked="checked" id="__tabbed_7_1" name="__tabbed_7" type="radio" /><input id="__tabbed_7_2" name="__tabbed_7" type="radio" /><input id="__tabbed_7_3" name="__tabbed_7" type="radio" /><input id="__tabbed_7_4" name="__tabbed_7" type="radio" /><input id="__tabbed_7_5" name="__tabbed_7" type="radio" /><input id="__tabbed_7_6" name="__tabbed_7" type="radio" /><input id="__tabbed_7_7" name="__tabbed_7" type="radio" /><input id="__tabbed_7_8" name="__tabbed_7" type="radio" /><input id="__tabbed_7_9" name="__tabbed_7" type="radio" /><input id="__tabbed_7_10" name="__tabbed_7" type="radio" /><input id="__tabbed_7_11" name="__tabbed_7" type="radio" /><input id="__tabbed_7_12" name="__tabbed_7" type="radio" /><div class="tabbed-labels"><label for="__tabbed_7_1">Python</label><label for="__tabbed_7_2">C++</label><label for="__tabbed_7_3">Java</label><label for="__tabbed_7_4">C#</label><label for="__tabbed_7_5">Go</label><label for="__tabbed_7_6">Swift</label><label for="__tabbed_7_7">JS</label><label for="__tabbed_7_8">TS</label><label for="__tabbed_7_9">Dart</label><label for="__tabbed_7_10">Rust</label><label for="__tabbed_7_11">C</label><label for="__tabbed_7_12">Zig</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.py</span><pre><span></span><code><a id="__codelineno-72-1" name="__codelineno-72-1" href="#__codelineno-72-1"></a><span class="k">class</span> <span class="nc">MyList</span><span class="p">:</span>
|
||
<a id="__codelineno-72-2" name="__codelineno-72-2" href="#__codelineno-72-2"></a><span class="w"> </span><span class="sd">"""列表类简易实现"""</span>
|
||
<a id="__codelineno-72-3" name="__codelineno-72-3" href="#__codelineno-72-3"></a>
|
||
<a id="__codelineno-72-4" name="__codelineno-72-4" href="#__codelineno-72-4"></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||
<a id="__codelineno-72-5" name="__codelineno-72-5" href="#__codelineno-72-5"></a><span class="w"> </span><span class="sd">"""构造方法"""</span>
|
||
<a id="__codelineno-72-6" name="__codelineno-72-6" href="#__codelineno-72-6"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_capacity</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">10</span> <span class="c1"># 列表容量</span>
|
||
<a id="__codelineno-72-7" name="__codelineno-72-7" href="#__codelineno-72-7"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">_capacity</span> <span class="c1"># 数组（存储列表元素）</span>
|
||
<a id="__codelineno-72-8" name="__codelineno-72-8" href="#__codelineno-72-8"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-72-9" name="__codelineno-72-9" href="#__codelineno-72-9"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_extend_ratio</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">2</span> <span class="c1"># 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-72-10" name="__codelineno-72-10" href="#__codelineno-72-10"></a>
|
||
<a id="__codelineno-72-11" name="__codelineno-72-11" href="#__codelineno-72-11"></a> <span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
||
<a id="__codelineno-72-12" name="__codelineno-72-12" href="#__codelineno-72-12"></a><span class="w"> </span><span class="sd">"""获取列表长度（即当前元素数量）"""</span>
|
||
<a id="__codelineno-72-13" name="__codelineno-72-13" href="#__codelineno-72-13"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span>
|
||
<a id="__codelineno-72-14" name="__codelineno-72-14" href="#__codelineno-72-14"></a>
|
||
<a id="__codelineno-72-15" name="__codelineno-72-15" href="#__codelineno-72-15"></a> <span class="k">def</span> <span class="nf">capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
||
<a id="__codelineno-72-16" name="__codelineno-72-16" href="#__codelineno-72-16"></a><span class="w"> </span><span class="sd">"""获取列表容量"""</span>
|
||
<a id="__codelineno-72-17" name="__codelineno-72-17" href="#__codelineno-72-17"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_capacity</span>
|
||
<a id="__codelineno-72-18" name="__codelineno-72-18" href="#__codelineno-72-18"></a>
|
||
<a id="__codelineno-72-19" name="__codelineno-72-19" href="#__codelineno-72-19"></a> <span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
||
<a id="__codelineno-72-20" name="__codelineno-72-20" href="#__codelineno-72-20"></a><span class="w"> </span><span class="sd">"""访问元素"""</span>
|
||
<a id="__codelineno-72-21" name="__codelineno-72-21" href="#__codelineno-72-21"></a> <span class="c1"># 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-72-22" name="__codelineno-72-22" href="#__codelineno-72-22"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span>
|
||
<a id="__codelineno-72-23" name="__codelineno-72-23" href="#__codelineno-72-23"></a> <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-72-24" name="__codelineno-72-24" href="#__codelineno-72-24"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||
<a id="__codelineno-72-25" name="__codelineno-72-25" href="#__codelineno-72-25"></a>
|
||
<a id="__codelineno-72-26" name="__codelineno-72-26" href="#__codelineno-72-26"></a> <span class="k">def</span> <span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span>
|
||
<a id="__codelineno-72-27" name="__codelineno-72-27" href="#__codelineno-72-27"></a><span class="w"> </span><span class="sd">"""更新元素"""</span>
|
||
<a id="__codelineno-72-28" name="__codelineno-72-28" href="#__codelineno-72-28"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span>
|
||
<a id="__codelineno-72-29" name="__codelineno-72-29" href="#__codelineno-72-29"></a> <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-72-30" name="__codelineno-72-30" href="#__codelineno-72-30"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-72-31" name="__codelineno-72-31" href="#__codelineno-72-31"></a>
|
||
<a id="__codelineno-72-32" name="__codelineno-72-32" href="#__codelineno-72-32"></a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span>
|
||
<a id="__codelineno-72-33" name="__codelineno-72-33" href="#__codelineno-72-33"></a><span class="w"> </span><span class="sd">"""尾部添加元素"""</span>
|
||
<a id="__codelineno-72-34" name="__codelineno-72-34" href="#__codelineno-72-34"></a> <span class="c1"># 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-72-35" name="__codelineno-72-35" href="#__codelineno-72-35"></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">()</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">():</span>
|
||
<a id="__codelineno-72-36" name="__codelineno-72-36" href="#__codelineno-72-36"></a> <span class="bp">self</span><span class="o">.</span><span class="n">extend_capacity</span><span class="p">()</span>
|
||
<a id="__codelineno-72-37" name="__codelineno-72-37" href="#__codelineno-72-37"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-72-38" name="__codelineno-72-38" href="#__codelineno-72-38"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-72-39" name="__codelineno-72-39" href="#__codelineno-72-39"></a>
|
||
<a id="__codelineno-72-40" name="__codelineno-72-40" href="#__codelineno-72-40"></a> <span class="k">def</span> <span class="nf">insert</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span>
|
||
<a id="__codelineno-72-41" name="__codelineno-72-41" href="#__codelineno-72-41"></a><span class="w"> </span><span class="sd">"""中间插入元素"""</span>
|
||
<a id="__codelineno-72-42" name="__codelineno-72-42" href="#__codelineno-72-42"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span>
|
||
<a id="__codelineno-72-43" name="__codelineno-72-43" href="#__codelineno-72-43"></a> <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-72-44" name="__codelineno-72-44" href="#__codelineno-72-44"></a> <span class="c1"># 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-72-45" name="__codelineno-72-45" href="#__codelineno-72-45"></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">():</span>
|
||
<a id="__codelineno-72-46" name="__codelineno-72-46" href="#__codelineno-72-46"></a> <span class="bp">self</span><span class="o">.</span><span class="n">extend_capacity</span><span class="p">()</span>
|
||
<a id="__codelineno-72-47" name="__codelineno-72-47" href="#__codelineno-72-47"></a> <span class="c1"># 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-72-48" name="__codelineno-72-48" href="#__codelineno-72-48"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">index</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">):</span>
|
||
<a id="__codelineno-72-49" name="__codelineno-72-49" href="#__codelineno-72-49"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>
|
||
<a id="__codelineno-72-50" name="__codelineno-72-50" href="#__codelineno-72-50"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-72-51" name="__codelineno-72-51" href="#__codelineno-72-51"></a> <span class="c1"># 更新元素数量</span>
|
||
<a id="__codelineno-72-52" name="__codelineno-72-52" href="#__codelineno-72-52"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-72-53" name="__codelineno-72-53" href="#__codelineno-72-53"></a>
|
||
<a id="__codelineno-72-54" name="__codelineno-72-54" href="#__codelineno-72-54"></a> <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
||
<a id="__codelineno-72-55" name="__codelineno-72-55" href="#__codelineno-72-55"></a><span class="w"> </span><span class="sd">"""删除元素"""</span>
|
||
<a id="__codelineno-72-56" name="__codelineno-72-56" href="#__codelineno-72-56"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span>
|
||
<a id="__codelineno-72-57" name="__codelineno-72-57" href="#__codelineno-72-57"></a> <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-72-58" name="__codelineno-72-58" href="#__codelineno-72-58"></a> <span class="n">num</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||
<a id="__codelineno-72-59" name="__codelineno-72-59" href="#__codelineno-72-59"></a> <span class="c1"># 索引 i 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-72-60" name="__codelineno-72-60" href="#__codelineno-72-60"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||
<a id="__codelineno-72-61" name="__codelineno-72-61" href="#__codelineno-72-61"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
||
<a id="__codelineno-72-62" name="__codelineno-72-62" href="#__codelineno-72-62"></a> <span class="c1"># 更新元素数量</span>
|
||
<a id="__codelineno-72-63" name="__codelineno-72-63" href="#__codelineno-72-63"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">-=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-72-64" name="__codelineno-72-64" href="#__codelineno-72-64"></a> <span class="c1"># 返回被删除元素</span>
|
||
<a id="__codelineno-72-65" name="__codelineno-72-65" href="#__codelineno-72-65"></a> <span class="k">return</span> <span class="n">num</span>
|
||
<a id="__codelineno-72-66" name="__codelineno-72-66" href="#__codelineno-72-66"></a>
|
||
<a id="__codelineno-72-67" name="__codelineno-72-67" href="#__codelineno-72-67"></a> <span class="k">def</span> <span class="nf">extend_capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||
<a id="__codelineno-72-68" name="__codelineno-72-68" href="#__codelineno-72-68"></a><span class="w"> </span><span class="sd">"""列表扩容"""</span>
|
||
<a id="__codelineno-72-69" name="__codelineno-72-69" href="#__codelineno-72-69"></a> <span class="c1"># 新建一个长度为原数组 __extend_ratio 倍的新数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-72-70" name="__codelineno-72-70" href="#__codelineno-72-70"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span> <span class="o">+</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">()</span> <span class="o">*</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_extend_ratio</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
|
||
<a id="__codelineno-72-71" name="__codelineno-72-71" href="#__codelineno-72-71"></a> <span class="c1"># 更新列表容量</span>
|
||
<a id="__codelineno-72-72" name="__codelineno-72-72" href="#__codelineno-72-72"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_capacity</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">)</span>
|
||
<a id="__codelineno-72-73" name="__codelineno-72-73" href="#__codelineno-72-73"></a>
|
||
<a id="__codelineno-72-74" name="__codelineno-72-74" href="#__codelineno-72-74"></a> <span class="k">def</span> <span class="nf">to_array</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]:</span>
|
||
<a id="__codelineno-72-75" name="__codelineno-72-75" href="#__codelineno-72-75"></a><span class="w"> </span><span class="sd">"""返回有效长度的列表"""</span>
|
||
<a id="__codelineno-72-76" name="__codelineno-72-76" href="#__codelineno-72-76"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">]</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.cpp</span><pre><span></span><code><a id="__codelineno-73-1" name="__codelineno-73-1" href="#__codelineno-73-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-73-2" name="__codelineno-73-2" href="#__codelineno-73-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-3" name="__codelineno-73-3" href="#__codelineno-73-3"></a><span class="w"> </span><span class="k">private</span><span class="o">:</span>
|
||
<a id="__codelineno-73-4" name="__codelineno-73-4" href="#__codelineno-73-4"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-73-5" name="__codelineno-73-5" href="#__codelineno-73-5"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-73-6" name="__codelineno-73-6" href="#__codelineno-73-6"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">arrSize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-73-7" name="__codelineno-73-7" href="#__codelineno-73-7"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-73-8" name="__codelineno-73-8" href="#__codelineno-73-8"></a>
|
||
<a id="__codelineno-73-9" name="__codelineno-73-9" href="#__codelineno-73-9"></a><span class="w"> </span><span class="k">public</span><span class="o">:</span>
|
||
<a id="__codelineno-73-10" name="__codelineno-73-10" href="#__codelineno-73-10"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||
<a id="__codelineno-73-11" name="__codelineno-73-11" href="#__codelineno-73-11"></a><span class="w"> </span><span class="n">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-12" name="__codelineno-73-12" href="#__codelineno-73-12"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">arrCapacity</span><span class="p">];</span>
|
||
<a id="__codelineno-73-13" name="__codelineno-73-13" href="#__codelineno-73-13"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-14" name="__codelineno-73-14" href="#__codelineno-73-14"></a>
|
||
<a id="__codelineno-73-15" name="__codelineno-73-15" href="#__codelineno-73-15"></a><span class="w"> </span><span class="cm">/* 析构方法 */</span>
|
||
<a id="__codelineno-73-16" name="__codelineno-73-16" href="#__codelineno-73-16"></a><span class="w"> </span><span class="o">~</span><span class="n">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-17" name="__codelineno-73-17" href="#__codelineno-73-17"></a><span class="w"> </span><span class="k">delete</span><span class="p">[]</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-73-18" name="__codelineno-73-18" href="#__codelineno-73-18"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-19" name="__codelineno-73-19" href="#__codelineno-73-19"></a>
|
||
<a id="__codelineno-73-20" name="__codelineno-73-20" href="#__codelineno-73-20"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
|
||
<a id="__codelineno-73-21" name="__codelineno-73-21" href="#__codelineno-73-21"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-22" name="__codelineno-73-22" href="#__codelineno-73-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arrSize</span><span class="p">;</span>
|
||
<a id="__codelineno-73-23" name="__codelineno-73-23" href="#__codelineno-73-23"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-24" name="__codelineno-73-24" href="#__codelineno-73-24"></a>
|
||
<a id="__codelineno-73-25" name="__codelineno-73-25" href="#__codelineno-73-25"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-73-26" name="__codelineno-73-26" href="#__codelineno-73-26"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-27" name="__codelineno-73-27" href="#__codelineno-73-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arrCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-73-28" name="__codelineno-73-28" href="#__codelineno-73-28"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-29" name="__codelineno-73-29" href="#__codelineno-73-29"></a>
|
||
<a id="__codelineno-73-30" name="__codelineno-73-30" href="#__codelineno-73-30"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-73-31" name="__codelineno-73-31" href="#__codelineno-73-31"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-32" name="__codelineno-73-32" href="#__codelineno-73-32"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-73-33" name="__codelineno-73-33" href="#__codelineno-73-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
||
<a id="__codelineno-73-34" name="__codelineno-73-34" href="#__codelineno-73-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-73-35" name="__codelineno-73-35" href="#__codelineno-73-35"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-73-36" name="__codelineno-73-36" href="#__codelineno-73-36"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-37" name="__codelineno-73-37" href="#__codelineno-73-37"></a>
|
||
<a id="__codelineno-73-38" name="__codelineno-73-38" href="#__codelineno-73-38"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-73-39" name="__codelineno-73-39" href="#__codelineno-73-39"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-40" name="__codelineno-73-40" href="#__codelineno-73-40"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
||
<a id="__codelineno-73-41" name="__codelineno-73-41" href="#__codelineno-73-41"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-73-42" name="__codelineno-73-42" href="#__codelineno-73-42"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-73-43" name="__codelineno-73-43" href="#__codelineno-73-43"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-44" name="__codelineno-73-44" href="#__codelineno-73-44"></a>
|
||
<a id="__codelineno-73-45" name="__codelineno-73-45" href="#__codelineno-73-45"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-73-46" name="__codelineno-73-46" href="#__codelineno-73-46"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-47" name="__codelineno-73-47" href="#__codelineno-73-47"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-73-48" name="__codelineno-73-48" href="#__codelineno-73-48"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-73-49" name="__codelineno-73-49" href="#__codelineno-73-49"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-73-50" name="__codelineno-73-50" href="#__codelineno-73-50"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">size</span><span class="p">()]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-73-51" name="__codelineno-73-51" href="#__codelineno-73-51"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-73-52" name="__codelineno-73-52" href="#__codelineno-73-52"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-73-53" name="__codelineno-73-53" href="#__codelineno-73-53"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-54" name="__codelineno-73-54" href="#__codelineno-73-54"></a>
|
||
<a id="__codelineno-73-55" name="__codelineno-73-55" href="#__codelineno-73-55"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-73-56" name="__codelineno-73-56" href="#__codelineno-73-56"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-57" name="__codelineno-73-57" href="#__codelineno-73-57"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
||
<a id="__codelineno-73-58" name="__codelineno-73-58" href="#__codelineno-73-58"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-73-59" name="__codelineno-73-59" href="#__codelineno-73-59"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-73-60" name="__codelineno-73-60" href="#__codelineno-73-60"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-73-61" name="__codelineno-73-61" href="#__codelineno-73-61"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-73-62" name="__codelineno-73-62" href="#__codelineno-73-62"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-73-63" name="__codelineno-73-63" href="#__codelineno-73-63"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-64" name="__codelineno-73-64" href="#__codelineno-73-64"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-73-65" name="__codelineno-73-65" href="#__codelineno-73-65"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-66" name="__codelineno-73-66" href="#__codelineno-73-66"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-73-67" name="__codelineno-73-67" href="#__codelineno-73-67"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-73-68" name="__codelineno-73-68" href="#__codelineno-73-68"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-73-69" name="__codelineno-73-69" href="#__codelineno-73-69"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-70" name="__codelineno-73-70" href="#__codelineno-73-70"></a>
|
||
<a id="__codelineno-73-71" name="__codelineno-73-71" href="#__codelineno-73-71"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-73-72" name="__codelineno-73-72" href="#__codelineno-73-72"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-73" name="__codelineno-73-73" href="#__codelineno-73-73"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
||
<a id="__codelineno-73-74" name="__codelineno-73-74" href="#__codelineno-73-74"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-73-75" name="__codelineno-73-75" href="#__codelineno-73-75"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-73-76" name="__codelineno-73-76" href="#__codelineno-73-76"></a><span class="w"> </span><span class="c1">// 索引 i 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-73-77" name="__codelineno-73-77" href="#__codelineno-73-77"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-78" name="__codelineno-73-78" href="#__codelineno-73-78"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-73-79" name="__codelineno-73-79" href="#__codelineno-73-79"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-80" name="__codelineno-73-80" href="#__codelineno-73-80"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-73-81" name="__codelineno-73-81" href="#__codelineno-73-81"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-73-82" name="__codelineno-73-82" href="#__codelineno-73-82"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-73-83" name="__codelineno-73-83" href="#__codelineno-73-83"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-73-84" name="__codelineno-73-84" href="#__codelineno-73-84"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-85" name="__codelineno-73-85" href="#__codelineno-73-85"></a>
|
||
<a id="__codelineno-73-86" name="__codelineno-73-86" href="#__codelineno-73-86"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-73-87" name="__codelineno-73-87" href="#__codelineno-73-87"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-88" name="__codelineno-73-88" href="#__codelineno-73-88"></a><span class="w"> </span><span class="c1">// 新建一个长度为原数组 extendRatio 倍的新数组</span>
|
||
<a id="__codelineno-73-89" name="__codelineno-73-89" href="#__codelineno-73-89"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">newCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">;</span>
|
||
<a id="__codelineno-73-90" name="__codelineno-73-90" href="#__codelineno-73-90"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-73-91" name="__codelineno-73-91" href="#__codelineno-73-91"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">newCapacity</span><span class="p">];</span>
|
||
<a id="__codelineno-73-92" name="__codelineno-73-92" href="#__codelineno-73-92"></a><span class="w"> </span><span class="c1">// 将原数组中的所有元素复制到新数组</span>
|
||
<a id="__codelineno-73-93" name="__codelineno-73-93" href="#__codelineno-73-93"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-94" name="__codelineno-73-94" href="#__codelineno-73-94"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tmp</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-73-95" name="__codelineno-73-95" href="#__codelineno-73-95"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-96" name="__codelineno-73-96" href="#__codelineno-73-96"></a><span class="w"> </span><span class="c1">// 释放内存</span>
|
||
<a id="__codelineno-73-97" name="__codelineno-73-97" href="#__codelineno-73-97"></a><span class="w"> </span><span class="k">delete</span><span class="p">[]</span><span class="w"> </span><span class="n">tmp</span><span class="p">;</span>
|
||
<a id="__codelineno-73-98" name="__codelineno-73-98" href="#__codelineno-73-98"></a><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-73-99" name="__codelineno-73-99" href="#__codelineno-73-99"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-100" name="__codelineno-73-100" href="#__codelineno-73-100"></a>
|
||
<a id="__codelineno-73-101" name="__codelineno-73-101" href="#__codelineno-73-101"></a><span class="w"> </span><span class="cm">/* 将列表转换为 Vector 用于打印 */</span>
|
||
<a id="__codelineno-73-102" name="__codelineno-73-102" href="#__codelineno-73-102"></a><span class="w"> </span><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">toVector</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-103" name="__codelineno-73-103" href="#__codelineno-73-103"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||
<a id="__codelineno-73-104" name="__codelineno-73-104" href="#__codelineno-73-104"></a><span class="w"> </span><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">vec</span><span class="p">(</span><span class="n">size</span><span class="p">());</span>
|
||
<a id="__codelineno-73-105" name="__codelineno-73-105" href="#__codelineno-73-105"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-73-106" name="__codelineno-73-106" href="#__codelineno-73-106"></a><span class="w"> </span><span class="n">vec</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-73-107" name="__codelineno-73-107" href="#__codelineno-73-107"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-108" name="__codelineno-73-108" href="#__codelineno-73-108"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">vec</span><span class="p">;</span>
|
||
<a id="__codelineno-73-109" name="__codelineno-73-109" href="#__codelineno-73-109"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-73-110" name="__codelineno-73-110" href="#__codelineno-73-110"></a><span class="p">};</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.java</span><pre><span></span><code><a id="__codelineno-74-1" name="__codelineno-74-1" href="#__codelineno-74-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-74-2" name="__codelineno-74-2" href="#__codelineno-74-2"></a><span class="kd">class</span> <span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-3" name="__codelineno-74-3" href="#__codelineno-74-3"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-74-4" name="__codelineno-74-4" href="#__codelineno-74-4"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-74-5" name="__codelineno-74-5" href="#__codelineno-74-5"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-74-6" name="__codelineno-74-6" href="#__codelineno-74-6"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-74-7" name="__codelineno-74-7" href="#__codelineno-74-7"></a>
|
||
<a id="__codelineno-74-8" name="__codelineno-74-8" href="#__codelineno-74-8"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||
<a id="__codelineno-74-9" name="__codelineno-74-9" href="#__codelineno-74-9"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="nf">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-10" name="__codelineno-74-10" href="#__codelineno-74-10"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="o">[</span><span class="n">capacity</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-74-11" name="__codelineno-74-11" href="#__codelineno-74-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-12" name="__codelineno-74-12" href="#__codelineno-74-12"></a>
|
||
<a id="__codelineno-74-13" name="__codelineno-74-13" href="#__codelineno-74-13"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量） */</span>
|
||
<a id="__codelineno-74-14" name="__codelineno-74-14" href="#__codelineno-74-14"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-15" name="__codelineno-74-15" href="#__codelineno-74-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">size</span><span class="p">;</span>
|
||
<a id="__codelineno-74-16" name="__codelineno-74-16" href="#__codelineno-74-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-17" name="__codelineno-74-17" href="#__codelineno-74-17"></a>
|
||
<a id="__codelineno-74-18" name="__codelineno-74-18" href="#__codelineno-74-18"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-74-19" name="__codelineno-74-19" href="#__codelineno-74-19"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-20" name="__codelineno-74-20" href="#__codelineno-74-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-74-21" name="__codelineno-74-21" href="#__codelineno-74-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-22" name="__codelineno-74-22" href="#__codelineno-74-22"></a>
|
||
<a id="__codelineno-74-23" name="__codelineno-74-23" href="#__codelineno-74-23"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-74-24" name="__codelineno-74-24" href="#__codelineno-74-24"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-25" name="__codelineno-74-25" href="#__codelineno-74-25"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-74-26" name="__codelineno-74-26" href="#__codelineno-74-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-74-27" name="__codelineno-74-27" href="#__codelineno-74-27"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-74-28" name="__codelineno-74-28" href="#__codelineno-74-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-74-29" name="__codelineno-74-29" href="#__codelineno-74-29"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-30" name="__codelineno-74-30" href="#__codelineno-74-30"></a>
|
||
<a id="__codelineno-74-31" name="__codelineno-74-31" href="#__codelineno-74-31"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-74-32" name="__codelineno-74-32" href="#__codelineno-74-32"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-33" name="__codelineno-74-33" href="#__codelineno-74-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-74-34" name="__codelineno-74-34" href="#__codelineno-74-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-74-35" name="__codelineno-74-35" href="#__codelineno-74-35"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-74-36" name="__codelineno-74-36" href="#__codelineno-74-36"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-37" name="__codelineno-74-37" href="#__codelineno-74-37"></a>
|
||
<a id="__codelineno-74-38" name="__codelineno-74-38" href="#__codelineno-74-38"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-74-39" name="__codelineno-74-39" href="#__codelineno-74-39"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-40" name="__codelineno-74-40" href="#__codelineno-74-40"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-74-41" name="__codelineno-74-41" href="#__codelineno-74-41"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-74-42" name="__codelineno-74-42" href="#__codelineno-74-42"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-74-43" name="__codelineno-74-43" href="#__codelineno-74-43"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">size</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-74-44" name="__codelineno-74-44" href="#__codelineno-74-44"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-74-45" name="__codelineno-74-45" href="#__codelineno-74-45"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-74-46" name="__codelineno-74-46" href="#__codelineno-74-46"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-47" name="__codelineno-74-47" href="#__codelineno-74-47"></a>
|
||
<a id="__codelineno-74-48" name="__codelineno-74-48" href="#__codelineno-74-48"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-74-49" name="__codelineno-74-49" href="#__codelineno-74-49"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-50" name="__codelineno-74-50" href="#__codelineno-74-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-74-51" name="__codelineno-74-51" href="#__codelineno-74-51"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-74-52" name="__codelineno-74-52" href="#__codelineno-74-52"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-74-53" name="__codelineno-74-53" href="#__codelineno-74-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-74-54" name="__codelineno-74-54" href="#__codelineno-74-54"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-74-55" name="__codelineno-74-55" href="#__codelineno-74-55"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-74-56" name="__codelineno-74-56" href="#__codelineno-74-56"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-57" name="__codelineno-74-57" href="#__codelineno-74-57"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-74-58" name="__codelineno-74-58" href="#__codelineno-74-58"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-59" name="__codelineno-74-59" href="#__codelineno-74-59"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-74-60" name="__codelineno-74-60" href="#__codelineno-74-60"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-74-61" name="__codelineno-74-61" href="#__codelineno-74-61"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-74-62" name="__codelineno-74-62" href="#__codelineno-74-62"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-63" name="__codelineno-74-63" href="#__codelineno-74-63"></a>
|
||
<a id="__codelineno-74-64" name="__codelineno-74-64" href="#__codelineno-74-64"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-74-65" name="__codelineno-74-65" href="#__codelineno-74-65"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-66" name="__codelineno-74-66" href="#__codelineno-74-66"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-74-67" name="__codelineno-74-67" href="#__codelineno-74-67"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-74-68" name="__codelineno-74-68" href="#__codelineno-74-68"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-74-69" name="__codelineno-74-69" href="#__codelineno-74-69"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-74-70" name="__codelineno-74-70" href="#__codelineno-74-70"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-71" name="__codelineno-74-71" href="#__codelineno-74-71"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-74-72" name="__codelineno-74-72" href="#__codelineno-74-72"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-73" name="__codelineno-74-73" href="#__codelineno-74-73"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-74-74" name="__codelineno-74-74" href="#__codelineno-74-74"></a><span class="w"> </span><span class="n">size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-74-75" name="__codelineno-74-75" href="#__codelineno-74-75"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-74-76" name="__codelineno-74-76" href="#__codelineno-74-76"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-74-77" name="__codelineno-74-77" href="#__codelineno-74-77"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-78" name="__codelineno-74-78" href="#__codelineno-74-78"></a>
|
||
<a id="__codelineno-74-79" name="__codelineno-74-79" href="#__codelineno-74-79"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-74-80" name="__codelineno-74-80" href="#__codelineno-74-80"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-81" name="__codelineno-74-81" href="#__codelineno-74-81"></a><span class="w"> </span><span class="c1">// 新建一个长度为原数组 extendRatio 倍的新数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-74-82" name="__codelineno-74-82" href="#__codelineno-74-82"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Arrays</span><span class="p">.</span><span class="na">copyOf</span><span class="p">(</span><span class="n">arr</span><span class="p">,</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">);</span>
|
||
<a id="__codelineno-74-83" name="__codelineno-74-83" href="#__codelineno-74-83"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-74-84" name="__codelineno-74-84" href="#__codelineno-74-84"></a><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="na">length</span><span class="p">;</span>
|
||
<a id="__codelineno-74-85" name="__codelineno-74-85" href="#__codelineno-74-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-86" name="__codelineno-74-86" href="#__codelineno-74-86"></a>
|
||
<a id="__codelineno-74-87" name="__codelineno-74-87" href="#__codelineno-74-87"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
|
||
<a id="__codelineno-74-88" name="__codelineno-74-88" href="#__codelineno-74-88"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="nf">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-89" name="__codelineno-74-89" href="#__codelineno-74-89"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">();</span>
|
||
<a id="__codelineno-74-90" name="__codelineno-74-90" href="#__codelineno-74-90"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||
<a id="__codelineno-74-91" name="__codelineno-74-91" href="#__codelineno-74-91"></a><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="o">[</span><span class="n">size</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-74-92" name="__codelineno-74-92" href="#__codelineno-74-92"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-74-93" name="__codelineno-74-93" href="#__codelineno-74-93"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">i</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
||
<a id="__codelineno-74-94" name="__codelineno-74-94" href="#__codelineno-74-94"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-95" name="__codelineno-74-95" href="#__codelineno-74-95"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-74-96" name="__codelineno-74-96" href="#__codelineno-74-96"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-74-97" name="__codelineno-74-97" href="#__codelineno-74-97"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.cs</span><pre><span></span><code><a id="__codelineno-75-1" name="__codelineno-75-1" href="#__codelineno-75-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-75-2" name="__codelineno-75-2" href="#__codelineno-75-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-3" name="__codelineno-75-3" href="#__codelineno-75-3"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-75-4" name="__codelineno-75-4" href="#__codelineno-75-4"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-75-5" name="__codelineno-75-5" href="#__codelineno-75-5"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">arrSize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-75-6" name="__codelineno-75-6" href="#__codelineno-75-6"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="k">readonly</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-75-7" name="__codelineno-75-7" href="#__codelineno-75-7"></a>
|
||
<a id="__codelineno-75-8" name="__codelineno-75-8" href="#__codelineno-75-8"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||
<a id="__codelineno-75-9" name="__codelineno-75-9" href="#__codelineno-75-9"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nf">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-10" name="__codelineno-75-10" href="#__codelineno-75-10"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">arrCapacity</span><span class="p">];</span>
|
||
<a id="__codelineno-75-11" name="__codelineno-75-11" href="#__codelineno-75-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-12" name="__codelineno-75-12" href="#__codelineno-75-12"></a>
|
||
<a id="__codelineno-75-13" name="__codelineno-75-13" href="#__codelineno-75-13"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
|
||
<a id="__codelineno-75-14" name="__codelineno-75-14" href="#__codelineno-75-14"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">Size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-15" name="__codelineno-75-15" href="#__codelineno-75-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arrSize</span><span class="p">;</span>
|
||
<a id="__codelineno-75-16" name="__codelineno-75-16" href="#__codelineno-75-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-17" name="__codelineno-75-17" href="#__codelineno-75-17"></a>
|
||
<a id="__codelineno-75-18" name="__codelineno-75-18" href="#__codelineno-75-18"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-75-19" name="__codelineno-75-19" href="#__codelineno-75-19"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">Capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-20" name="__codelineno-75-20" href="#__codelineno-75-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arrCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-75-21" name="__codelineno-75-21" href="#__codelineno-75-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-22" name="__codelineno-75-22" href="#__codelineno-75-22"></a>
|
||
<a id="__codelineno-75-23" name="__codelineno-75-23" href="#__codelineno-75-23"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-75-24" name="__codelineno-75-24" href="#__codelineno-75-24"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">Get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-25" name="__codelineno-75-25" href="#__codelineno-75-25"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-75-26" name="__codelineno-75-26" href="#__codelineno-75-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">arrSize</span><span class="p">)</span>
|
||
<a id="__codelineno-75-27" name="__codelineno-75-27" href="#__codelineno-75-27"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-75-28" name="__codelineno-75-28" href="#__codelineno-75-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-75-29" name="__codelineno-75-29" href="#__codelineno-75-29"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-30" name="__codelineno-75-30" href="#__codelineno-75-30"></a>
|
||
<a id="__codelineno-75-31" name="__codelineno-75-31" href="#__codelineno-75-31"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-75-32" name="__codelineno-75-32" href="#__codelineno-75-32"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">Set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-33" name="__codelineno-75-33" href="#__codelineno-75-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">arrSize</span><span class="p">)</span>
|
||
<a id="__codelineno-75-34" name="__codelineno-75-34" href="#__codelineno-75-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-75-35" name="__codelineno-75-35" href="#__codelineno-75-35"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-75-36" name="__codelineno-75-36" href="#__codelineno-75-36"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-37" name="__codelineno-75-37" href="#__codelineno-75-37"></a>
|
||
<a id="__codelineno-75-38" name="__codelineno-75-38" href="#__codelineno-75-38"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-75-39" name="__codelineno-75-39" href="#__codelineno-75-39"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">Add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-40" name="__codelineno-75-40" href="#__codelineno-75-40"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-75-41" name="__codelineno-75-41" href="#__codelineno-75-41"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">arrSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">arrCapacity</span><span class="p">)</span>
|
||
<a id="__codelineno-75-42" name="__codelineno-75-42" href="#__codelineno-75-42"></a><span class="w"> </span><span class="n">ExtendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-75-43" name="__codelineno-75-43" href="#__codelineno-75-43"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">arrSize</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-75-44" name="__codelineno-75-44" href="#__codelineno-75-44"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-75-45" name="__codelineno-75-45" href="#__codelineno-75-45"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-75-46" name="__codelineno-75-46" href="#__codelineno-75-46"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-47" name="__codelineno-75-47" href="#__codelineno-75-47"></a>
|
||
<a id="__codelineno-75-48" name="__codelineno-75-48" href="#__codelineno-75-48"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-75-49" name="__codelineno-75-49" href="#__codelineno-75-49"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">Insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-50" name="__codelineno-75-50" href="#__codelineno-75-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">arrSize</span><span class="p">)</span>
|
||
<a id="__codelineno-75-51" name="__codelineno-75-51" href="#__codelineno-75-51"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-75-52" name="__codelineno-75-52" href="#__codelineno-75-52"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-75-53" name="__codelineno-75-53" href="#__codelineno-75-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">arrSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">arrCapacity</span><span class="p">)</span>
|
||
<a id="__codelineno-75-54" name="__codelineno-75-54" href="#__codelineno-75-54"></a><span class="w"> </span><span class="n">ExtendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-75-55" name="__codelineno-75-55" href="#__codelineno-75-55"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-75-56" name="__codelineno-75-56" href="#__codelineno-75-56"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-57" name="__codelineno-75-57" href="#__codelineno-75-57"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-75-58" name="__codelineno-75-58" href="#__codelineno-75-58"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-59" name="__codelineno-75-59" href="#__codelineno-75-59"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-75-60" name="__codelineno-75-60" href="#__codelineno-75-60"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-75-61" name="__codelineno-75-61" href="#__codelineno-75-61"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-75-62" name="__codelineno-75-62" href="#__codelineno-75-62"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-63" name="__codelineno-75-63" href="#__codelineno-75-63"></a>
|
||
<a id="__codelineno-75-64" name="__codelineno-75-64" href="#__codelineno-75-64"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-75-65" name="__codelineno-75-65" href="#__codelineno-75-65"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">Remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-66" name="__codelineno-75-66" href="#__codelineno-75-66"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">arrSize</span><span class="p">)</span>
|
||
<a id="__codelineno-75-67" name="__codelineno-75-67" href="#__codelineno-75-67"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-75-68" name="__codelineno-75-68" href="#__codelineno-75-68"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-75-69" name="__codelineno-75-69" href="#__codelineno-75-69"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-75-70" name="__codelineno-75-70" href="#__codelineno-75-70"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">arrSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-71" name="__codelineno-75-71" href="#__codelineno-75-71"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">];</span>
|
||
<a id="__codelineno-75-72" name="__codelineno-75-72" href="#__codelineno-75-72"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-73" name="__codelineno-75-73" href="#__codelineno-75-73"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-75-74" name="__codelineno-75-74" href="#__codelineno-75-74"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-75-75" name="__codelineno-75-75" href="#__codelineno-75-75"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-75-76" name="__codelineno-75-76" href="#__codelineno-75-76"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-75-77" name="__codelineno-75-77" href="#__codelineno-75-77"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-78" name="__codelineno-75-78" href="#__codelineno-75-78"></a>
|
||
<a id="__codelineno-75-79" name="__codelineno-75-79" href="#__codelineno-75-79"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-75-80" name="__codelineno-75-80" href="#__codelineno-75-80"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">ExtendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-81" name="__codelineno-75-81" href="#__codelineno-75-81"></a><span class="w"> </span><span class="c1">// 新建一个长度为 arrCapacity * extendRatio 的数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-75-82" name="__codelineno-75-82" href="#__codelineno-75-82"></a><span class="w"> </span><span class="n">Array</span><span class="p">.</span><span class="n">Resize</span><span class="p">(</span><span class="k">ref</span><span class="w"> </span><span class="n">arr</span><span class="p">,</span><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">);</span>
|
||
<a id="__codelineno-75-83" name="__codelineno-75-83" href="#__codelineno-75-83"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-75-84" name="__codelineno-75-84" href="#__codelineno-75-84"></a><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="n">Length</span><span class="p">;</span>
|
||
<a id="__codelineno-75-85" name="__codelineno-75-85" href="#__codelineno-75-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-86" name="__codelineno-75-86" href="#__codelineno-75-86"></a>
|
||
<a id="__codelineno-75-87" name="__codelineno-75-87" href="#__codelineno-75-87"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
|
||
<a id="__codelineno-75-88" name="__codelineno-75-88" href="#__codelineno-75-88"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="nf">ToArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-89" name="__codelineno-75-89" href="#__codelineno-75-89"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||
<a id="__codelineno-75-90" name="__codelineno-75-90" href="#__codelineno-75-90"></a><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">arrSize</span><span class="p">];</span>
|
||
<a id="__codelineno-75-91" name="__codelineno-75-91" href="#__codelineno-75-91"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">arrSize</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-75-92" name="__codelineno-75-92" href="#__codelineno-75-92"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
||
<a id="__codelineno-75-93" name="__codelineno-75-93" href="#__codelineno-75-93"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-94" name="__codelineno-75-94" href="#__codelineno-75-94"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-75-95" name="__codelineno-75-95" href="#__codelineno-75-95"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-75-96" name="__codelineno-75-96" href="#__codelineno-75-96"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.go</span><pre><span></span><code><a id="__codelineno-76-1" name="__codelineno-76-1" href="#__codelineno-76-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-76-2" name="__codelineno-76-2" href="#__codelineno-76-2"></a><span class="kd">type</span><span class="w"> </span><span class="nx">myList</span><span class="w"> </span><span class="kd">struct</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-3" name="__codelineno-76-3" href="#__codelineno-76-3"></a><span class="w"> </span><span class="nx">arrCapacity</span><span class="w"> </span><span class="kt">int</span>
|
||
<a id="__codelineno-76-4" name="__codelineno-76-4" href="#__codelineno-76-4"></a><span class="w"> </span><span class="nx">arr</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span>
|
||
<a id="__codelineno-76-5" name="__codelineno-76-5" href="#__codelineno-76-5"></a><span class="w"> </span><span class="nx">arrSize</span><span class="w"> </span><span class="kt">int</span>
|
||
<a id="__codelineno-76-6" name="__codelineno-76-6" href="#__codelineno-76-6"></a><span class="w"> </span><span class="nx">extendRatio</span><span class="w"> </span><span class="kt">int</span>
|
||
<a id="__codelineno-76-7" name="__codelineno-76-7" href="#__codelineno-76-7"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-8" name="__codelineno-76-8" href="#__codelineno-76-8"></a>
|
||
<a id="__codelineno-76-9" name="__codelineno-76-9" href="#__codelineno-76-9"></a><span class="cm">/* 构造函数 */</span>
|
||
<a id="__codelineno-76-10" name="__codelineno-76-10" href="#__codelineno-76-10"></a><span class="kd">func</span><span class="w"> </span><span class="nx">newMyList</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-11" name="__codelineno-76-11" href="#__codelineno-76-11"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="o">&</span><span class="nx">myList</span><span class="p">{</span>
|
||
<a id="__codelineno-76-12" name="__codelineno-76-12" href="#__codelineno-76-12"></a><span class="w"> </span><span class="nx">arrCapacity</span><span class="p">:</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-76-13" name="__codelineno-76-13" href="#__codelineno-76-13"></a><span class="w"> </span><span class="nx">arr</span><span class="p">:</span><span class="w"> </span><span class="nb">make</span><span class="p">([]</span><span class="kt">int</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">),</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-76-14" name="__codelineno-76-14" href="#__codelineno-76-14"></a><span class="w"> </span><span class="nx">arrSize</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-76-15" name="__codelineno-76-15" href="#__codelineno-76-15"></a><span class="w"> </span><span class="nx">extendRatio</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-76-16" name="__codelineno-76-16" href="#__codelineno-76-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-17" name="__codelineno-76-17" href="#__codelineno-76-17"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-18" name="__codelineno-76-18" href="#__codelineno-76-18"></a>
|
||
<a id="__codelineno-76-19" name="__codelineno-76-19" href="#__codelineno-76-19"></a><span class="cm">/* 获取列表长度（即当前元素数量） */</span>
|
||
<a id="__codelineno-76-20" name="__codelineno-76-20" href="#__codelineno-76-20"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-21" name="__codelineno-76-21" href="#__codelineno-76-21"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span>
|
||
<a id="__codelineno-76-22" name="__codelineno-76-22" href="#__codelineno-76-22"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-23" name="__codelineno-76-23" href="#__codelineno-76-23"></a>
|
||
<a id="__codelineno-76-24" name="__codelineno-76-24" href="#__codelineno-76-24"></a><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-76-25" name="__codelineno-76-25" href="#__codelineno-76-25"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-26" name="__codelineno-76-26" href="#__codelineno-76-26"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span>
|
||
<a id="__codelineno-76-27" name="__codelineno-76-27" href="#__codelineno-76-27"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-28" name="__codelineno-76-28" href="#__codelineno-76-28"></a>
|
||
<a id="__codelineno-76-29" name="__codelineno-76-29" href="#__codelineno-76-29"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-76-30" name="__codelineno-76-30" href="#__codelineno-76-30"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-31" name="__codelineno-76-31" href="#__codelineno-76-31"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-76-32" name="__codelineno-76-32" href="#__codelineno-76-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-33" name="__codelineno-76-33" href="#__codelineno-76-33"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-76-34" name="__codelineno-76-34" href="#__codelineno-76-34"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-35" name="__codelineno-76-35" href="#__codelineno-76-35"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span>
|
||
<a id="__codelineno-76-36" name="__codelineno-76-36" href="#__codelineno-76-36"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-37" name="__codelineno-76-37" href="#__codelineno-76-37"></a>
|
||
<a id="__codelineno-76-38" name="__codelineno-76-38" href="#__codelineno-76-38"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-76-39" name="__codelineno-76-39" href="#__codelineno-76-39"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-40" name="__codelineno-76-40" href="#__codelineno-76-40"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-41" name="__codelineno-76-41" href="#__codelineno-76-41"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-76-42" name="__codelineno-76-42" href="#__codelineno-76-42"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-43" name="__codelineno-76-43" href="#__codelineno-76-43"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-76-44" name="__codelineno-76-44" href="#__codelineno-76-44"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-45" name="__codelineno-76-45" href="#__codelineno-76-45"></a>
|
||
<a id="__codelineno-76-46" name="__codelineno-76-46" href="#__codelineno-76-46"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-76-47" name="__codelineno-76-47" href="#__codelineno-76-47"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-48" name="__codelineno-76-48" href="#__codelineno-76-48"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-76-49" name="__codelineno-76-49" href="#__codelineno-76-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-50" name="__codelineno-76-50" href="#__codelineno-76-50"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-76-51" name="__codelineno-76-51" href="#__codelineno-76-51"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-52" name="__codelineno-76-52" href="#__codelineno-76-52"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-76-53" name="__codelineno-76-53" href="#__codelineno-76-53"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-76-54" name="__codelineno-76-54" href="#__codelineno-76-54"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="o">++</span>
|
||
<a id="__codelineno-76-55" name="__codelineno-76-55" href="#__codelineno-76-55"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-56" name="__codelineno-76-56" href="#__codelineno-76-56"></a>
|
||
<a id="__codelineno-76-57" name="__codelineno-76-57" href="#__codelineno-76-57"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-76-58" name="__codelineno-76-58" href="#__codelineno-76-58"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-59" name="__codelineno-76-59" href="#__codelineno-76-59"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-60" name="__codelineno-76-60" href="#__codelineno-76-60"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-76-61" name="__codelineno-76-61" href="#__codelineno-76-61"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-62" name="__codelineno-76-62" href="#__codelineno-76-62"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-76-63" name="__codelineno-76-63" href="#__codelineno-76-63"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-64" name="__codelineno-76-64" href="#__codelineno-76-64"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-76-65" name="__codelineno-76-65" href="#__codelineno-76-65"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-66" name="__codelineno-76-66" href="#__codelineno-76-66"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-76-67" name="__codelineno-76-67" href="#__codelineno-76-67"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-68" name="__codelineno-76-68" href="#__codelineno-76-68"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span>
|
||
<a id="__codelineno-76-69" name="__codelineno-76-69" href="#__codelineno-76-69"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-70" name="__codelineno-76-70" href="#__codelineno-76-70"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-76-71" name="__codelineno-76-71" href="#__codelineno-76-71"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-76-72" name="__codelineno-76-72" href="#__codelineno-76-72"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="o">++</span>
|
||
<a id="__codelineno-76-73" name="__codelineno-76-73" href="#__codelineno-76-73"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-74" name="__codelineno-76-74" href="#__codelineno-76-74"></a>
|
||
<a id="__codelineno-76-75" name="__codelineno-76-75" href="#__codelineno-76-75"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-76-76" name="__codelineno-76-76" href="#__codelineno-76-76"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-77" name="__codelineno-76-77" href="#__codelineno-76-77"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-78" name="__codelineno-76-78" href="#__codelineno-76-78"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-76-79" name="__codelineno-76-79" href="#__codelineno-76-79"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-80" name="__codelineno-76-80" href="#__codelineno-76-80"></a><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span>
|
||
<a id="__codelineno-76-81" name="__codelineno-76-81" href="#__codelineno-76-81"></a><span class="w"> </span><span class="c1">// 索引 i 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-76-82" name="__codelineno-76-82" href="#__codelineno-76-82"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="o">-</span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-83" name="__codelineno-76-83" href="#__codelineno-76-83"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span>
|
||
<a id="__codelineno-76-84" name="__codelineno-76-84" href="#__codelineno-76-84"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-76-85" name="__codelineno-76-85" href="#__codelineno-76-85"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-76-86" name="__codelineno-76-86" href="#__codelineno-76-86"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="o">--</span>
|
||
<a id="__codelineno-76-87" name="__codelineno-76-87" href="#__codelineno-76-87"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-76-88" name="__codelineno-76-88" href="#__codelineno-76-88"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-76-89" name="__codelineno-76-89" href="#__codelineno-76-89"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-90" name="__codelineno-76-90" href="#__codelineno-76-90"></a>
|
||
<a id="__codelineno-76-91" name="__codelineno-76-91" href="#__codelineno-76-91"></a><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-76-92" name="__codelineno-76-92" href="#__codelineno-76-92"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-93" name="__codelineno-76-93" href="#__codelineno-76-93"></a><span class="w"> </span><span class="c1">// 新建一个长度为原数组 extendRatio 倍的新数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-76-94" name="__codelineno-76-94" href="#__codelineno-76-94"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">,</span><span class="w"> </span><span class="nb">make</span><span class="p">([]</span><span class="kt">int</span><span class="p">,</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span><span class="o">*</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">extendRatio</span><span class="o">-</span><span class="mi">1</span><span class="p">))</span><span class="o">...</span><span class="p">)</span>
|
||
<a id="__codelineno-76-95" name="__codelineno-76-95" href="#__codelineno-76-95"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-76-96" name="__codelineno-76-96" href="#__codelineno-76-96"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">len</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">)</span>
|
||
<a id="__codelineno-76-97" name="__codelineno-76-97" href="#__codelineno-76-97"></a><span class="p">}</span>
|
||
<a id="__codelineno-76-98" name="__codelineno-76-98" href="#__codelineno-76-98"></a>
|
||
<a id="__codelineno-76-99" name="__codelineno-76-99" href="#__codelineno-76-99"></a><span class="cm">/* 返回有效长度的列表 */</span>
|
||
<a id="__codelineno-76-100" name="__codelineno-76-100" href="#__codelineno-76-100"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-76-101" name="__codelineno-76-101" href="#__codelineno-76-101"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||
<a id="__codelineno-76-102" name="__codelineno-76-102" href="#__codelineno-76-102"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[:</span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="p">]</span>
|
||
<a id="__codelineno-76-103" name="__codelineno-76-103" href="#__codelineno-76-103"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.swift</span><pre><span></span><code><a id="__codelineno-77-1" name="__codelineno-77-1" href="#__codelineno-77-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-77-2" name="__codelineno-77-2" href="#__codelineno-77-2"></a><span class="kd">class</span> <span class="nc">MyList</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-3" name="__codelineno-77-3" href="#__codelineno-77-3"></a> <span class="kd">private</span> <span class="kd">var</span> <span class="nv">arr</span><span class="p">:</span> <span class="p">[</span><span class="nb">Int</span><span class="p">]</span> <span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-77-4" name="__codelineno-77-4" href="#__codelineno-77-4"></a> <span class="kd">private</span> <span class="kd">var</span> <span class="nv">_capacity</span> <span class="p">=</span> <span class="mi">10</span> <span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-77-5" name="__codelineno-77-5" href="#__codelineno-77-5"></a> <span class="kd">private</span> <span class="kd">var</span> <span class="nv">_size</span> <span class="p">=</span> <span class="mi">0</span> <span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-77-6" name="__codelineno-77-6" href="#__codelineno-77-6"></a> <span class="kd">private</span> <span class="kd">let</span> <span class="nv">extendRatio</span> <span class="p">=</span> <span class="mi">2</span> <span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-77-7" name="__codelineno-77-7" href="#__codelineno-77-7"></a>
|
||
<a id="__codelineno-77-8" name="__codelineno-77-8" href="#__codelineno-77-8"></a> <span class="cm">/* 构造方法 */</span>
|
||
<a id="__codelineno-77-9" name="__codelineno-77-9" href="#__codelineno-77-9"></a> <span class="kd">init</span><span class="p">()</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-10" name="__codelineno-77-10" href="#__codelineno-77-10"></a> <span class="n">arr</span> <span class="p">=</span> <span class="nb">Array</span><span class="p">(</span><span class="n">repeating</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span> <span class="bp">count</span><span class="p">:</span> <span class="n">_capacity</span><span class="p">)</span>
|
||
<a id="__codelineno-77-11" name="__codelineno-77-11" href="#__codelineno-77-11"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-12" name="__codelineno-77-12" href="#__codelineno-77-12"></a>
|
||
<a id="__codelineno-77-13" name="__codelineno-77-13" href="#__codelineno-77-13"></a> <span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
|
||
<a id="__codelineno-77-14" name="__codelineno-77-14" href="#__codelineno-77-14"></a> <span class="kd">func</span> <span class="nf">size</span><span class="p">()</span> <span class="p">-></span> <span class="nb">Int</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-15" name="__codelineno-77-15" href="#__codelineno-77-15"></a> <span class="n">_size</span>
|
||
<a id="__codelineno-77-16" name="__codelineno-77-16" href="#__codelineno-77-16"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-17" name="__codelineno-77-17" href="#__codelineno-77-17"></a>
|
||
<a id="__codelineno-77-18" name="__codelineno-77-18" href="#__codelineno-77-18"></a> <span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-77-19" name="__codelineno-77-19" href="#__codelineno-77-19"></a> <span class="kd">func</span> <span class="nf">capacity</span><span class="p">()</span> <span class="p">-></span> <span class="nb">Int</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-20" name="__codelineno-77-20" href="#__codelineno-77-20"></a> <span class="n">_capacity</span>
|
||
<a id="__codelineno-77-21" name="__codelineno-77-21" href="#__codelineno-77-21"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-22" name="__codelineno-77-22" href="#__codelineno-77-22"></a>
|
||
<a id="__codelineno-77-23" name="__codelineno-77-23" href="#__codelineno-77-23"></a> <span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-77-24" name="__codelineno-77-24" href="#__codelineno-77-24"></a> <span class="kd">func</span> <span class="nf">get</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">-></span> <span class="nb">Int</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-25" name="__codelineno-77-25" href="#__codelineno-77-25"></a> <span class="c1">// 索引如果越界则抛出错误，下同</span>
|
||
<a id="__codelineno-77-26" name="__codelineno-77-26" href="#__codelineno-77-26"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">index</span> <span class="o">>=</span> <span class="n">_size</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-27" name="__codelineno-77-27" href="#__codelineno-77-27"></a> <span class="bp">fatalError</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-77-28" name="__codelineno-77-28" href="#__codelineno-77-28"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-29" name="__codelineno-77-29" href="#__codelineno-77-29"></a> <span class="k">return</span> <span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||
<a id="__codelineno-77-30" name="__codelineno-77-30" href="#__codelineno-77-30"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-31" name="__codelineno-77-31" href="#__codelineno-77-31"></a>
|
||
<a id="__codelineno-77-32" name="__codelineno-77-32" href="#__codelineno-77-32"></a> <span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-77-33" name="__codelineno-77-33" href="#__codelineno-77-33"></a> <span class="kd">func</span> <span class="nf">set</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="nb">Int</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-34" name="__codelineno-77-34" href="#__codelineno-77-34"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">index</span> <span class="o">>=</span> <span class="n">_size</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-35" name="__codelineno-77-35" href="#__codelineno-77-35"></a> <span class="bp">fatalError</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-77-36" name="__codelineno-77-36" href="#__codelineno-77-36"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-37" name="__codelineno-77-37" href="#__codelineno-77-37"></a> <span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="p">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-77-38" name="__codelineno-77-38" href="#__codelineno-77-38"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-39" name="__codelineno-77-39" href="#__codelineno-77-39"></a>
|
||
<a id="__codelineno-77-40" name="__codelineno-77-40" href="#__codelineno-77-40"></a> <span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-77-41" name="__codelineno-77-41" href="#__codelineno-77-41"></a> <span class="kd">func</span> <span class="nf">add</span><span class="p">(</span><span class="n">num</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-42" name="__codelineno-77-42" href="#__codelineno-77-42"></a> <span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-77-43" name="__codelineno-77-43" href="#__codelineno-77-43"></a> <span class="k">if</span> <span class="n">_size</span> <span class="p">==</span> <span class="n">_capacity</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-44" name="__codelineno-77-44" href="#__codelineno-77-44"></a> <span class="n">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-77-45" name="__codelineno-77-45" href="#__codelineno-77-45"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-46" name="__codelineno-77-46" href="#__codelineno-77-46"></a> <span class="n">arr</span><span class="p">[</span><span class="n">_size</span><span class="p">]</span> <span class="p">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-77-47" name="__codelineno-77-47" href="#__codelineno-77-47"></a> <span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-77-48" name="__codelineno-77-48" href="#__codelineno-77-48"></a> <span class="n">_size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-77-49" name="__codelineno-77-49" href="#__codelineno-77-49"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-50" name="__codelineno-77-50" href="#__codelineno-77-50"></a>
|
||
<a id="__codelineno-77-51" name="__codelineno-77-51" href="#__codelineno-77-51"></a> <span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-77-52" name="__codelineno-77-52" href="#__codelineno-77-52"></a> <span class="kd">func</span> <span class="nf">insert</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="nb">Int</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-53" name="__codelineno-77-53" href="#__codelineno-77-53"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">index</span> <span class="o">>=</span> <span class="n">_size</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-54" name="__codelineno-77-54" href="#__codelineno-77-54"></a> <span class="bp">fatalError</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-77-55" name="__codelineno-77-55" href="#__codelineno-77-55"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-56" name="__codelineno-77-56" href="#__codelineno-77-56"></a> <span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-77-57" name="__codelineno-77-57" href="#__codelineno-77-57"></a> <span class="k">if</span> <span class="n">_size</span> <span class="p">==</span> <span class="n">_capacity</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-58" name="__codelineno-77-58" href="#__codelineno-77-58"></a> <span class="n">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-77-59" name="__codelineno-77-59" href="#__codelineno-77-59"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-60" name="__codelineno-77-60" href="#__codelineno-77-60"></a> <span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-77-61" name="__codelineno-77-61" href="#__codelineno-77-61"></a> <span class="k">for</span> <span class="n">j</span> <span class="k">in</span> <span class="n">sequence</span><span class="p">(</span><span class="bp">first</span><span class="p">:</span> <span class="n">_size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">next</span><span class="p">:</span> <span class="p">{</span> <span class="nv">$0</span> <span class="o">>=</span> <span class="n">index</span> <span class="o">+</span> <span class="mi">1</span> <span class="p">?</span> <span class="nv">$0</span> <span class="o">-</span> <span class="mi">1</span> <span class="p">:</span> <span class="kc">nil</span> <span class="p">})</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-62" name="__codelineno-77-62" href="#__codelineno-77-62"></a> <span class="n">arr</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span> <span class="p">=</span> <span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>
|
||
<a id="__codelineno-77-63" name="__codelineno-77-63" href="#__codelineno-77-63"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-64" name="__codelineno-77-64" href="#__codelineno-77-64"></a> <span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="p">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-77-65" name="__codelineno-77-65" href="#__codelineno-77-65"></a> <span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-77-66" name="__codelineno-77-66" href="#__codelineno-77-66"></a> <span class="n">_size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-77-67" name="__codelineno-77-67" href="#__codelineno-77-67"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-68" name="__codelineno-77-68" href="#__codelineno-77-68"></a>
|
||
<a id="__codelineno-77-69" name="__codelineno-77-69" href="#__codelineno-77-69"></a> <span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-77-70" name="__codelineno-77-70" href="#__codelineno-77-70"></a> <span class="p">@</span><span class="n">discardableResult</span>
|
||
<a id="__codelineno-77-71" name="__codelineno-77-71" href="#__codelineno-77-71"></a> <span class="kd">func</span> <span class="nf">remove</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">-></span> <span class="nb">Int</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-72" name="__codelineno-77-72" href="#__codelineno-77-72"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">index</span> <span class="o">>=</span> <span class="n">_size</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-73" name="__codelineno-77-73" href="#__codelineno-77-73"></a> <span class="bp">fatalError</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
||
<a id="__codelineno-77-74" name="__codelineno-77-74" href="#__codelineno-77-74"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-75" name="__codelineno-77-75" href="#__codelineno-77-75"></a> <span class="kd">let</span> <span class="nv">num</span> <span class="p">=</span> <span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||
<a id="__codelineno-77-76" name="__codelineno-77-76" href="#__codelineno-77-76"></a> <span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-77-77" name="__codelineno-77-77" href="#__codelineno-77-77"></a> <span class="k">for</span> <span class="n">j</span> <span class="k">in</span> <span class="n">index</span> <span class="p">..</span><span class="o"><</span> <span class="p">(</span><span class="n">_size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-78" name="__codelineno-77-78" href="#__codelineno-77-78"></a> <span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="p">=</span> <span class="n">arr</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
||
<a id="__codelineno-77-79" name="__codelineno-77-79" href="#__codelineno-77-79"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-80" name="__codelineno-77-80" href="#__codelineno-77-80"></a> <span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-77-81" name="__codelineno-77-81" href="#__codelineno-77-81"></a> <span class="n">_size</span> <span class="o">-=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-77-82" name="__codelineno-77-82" href="#__codelineno-77-82"></a> <span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-77-83" name="__codelineno-77-83" href="#__codelineno-77-83"></a> <span class="k">return</span> <span class="n">num</span>
|
||
<a id="__codelineno-77-84" name="__codelineno-77-84" href="#__codelineno-77-84"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-85" name="__codelineno-77-85" href="#__codelineno-77-85"></a>
|
||
<a id="__codelineno-77-86" name="__codelineno-77-86" href="#__codelineno-77-86"></a> <span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-77-87" name="__codelineno-77-87" href="#__codelineno-77-87"></a> <span class="kd">func</span> <span class="nf">extendCapacity</span><span class="p">()</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-88" name="__codelineno-77-88" href="#__codelineno-77-88"></a> <span class="c1">// 新建一个长度为原数组 extendRatio 倍的新数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-77-89" name="__codelineno-77-89" href="#__codelineno-77-89"></a> <span class="n">arr</span> <span class="p">=</span> <span class="n">arr</span> <span class="o">+</span> <span class="nb">Array</span><span class="p">(</span><span class="n">repeating</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span> <span class="bp">count</span><span class="p">:</span> <span class="n">_capacity</span> <span class="o">*</span> <span class="p">(</span><span class="n">extendRatio</span> <span class="o">-</span> <span class="mi">1</span><span class="p">))</span>
|
||
<a id="__codelineno-77-90" name="__codelineno-77-90" href="#__codelineno-77-90"></a> <span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-77-91" name="__codelineno-77-91" href="#__codelineno-77-91"></a> <span class="n">_capacity</span> <span class="p">=</span> <span class="n">arr</span><span class="p">.</span><span class="bp">count</span>
|
||
<a id="__codelineno-77-92" name="__codelineno-77-92" href="#__codelineno-77-92"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-93" name="__codelineno-77-93" href="#__codelineno-77-93"></a>
|
||
<a id="__codelineno-77-94" name="__codelineno-77-94" href="#__codelineno-77-94"></a> <span class="cm">/* 将列表转换为数组 */</span>
|
||
<a id="__codelineno-77-95" name="__codelineno-77-95" href="#__codelineno-77-95"></a> <span class="kd">func</span> <span class="nf">toArray</span><span class="p">()</span> <span class="p">-></span> <span class="p">[</span><span class="nb">Int</span><span class="p">]</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-96" name="__codelineno-77-96" href="#__codelineno-77-96"></a> <span class="kd">var</span> <span class="nv">arr</span> <span class="p">=</span> <span class="nb">Array</span><span class="p">(</span><span class="n">repeating</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span> <span class="bp">count</span><span class="p">:</span> <span class="n">_size</span><span class="p">)</span>
|
||
<a id="__codelineno-77-97" name="__codelineno-77-97" href="#__codelineno-77-97"></a> <span class="k">for</span> <span class="n">i</span> <span class="k">in</span> <span class="mi">0</span> <span class="p">..</span><span class="o"><</span> <span class="n">_size</span> <span class="p">{</span>
|
||
<a id="__codelineno-77-98" name="__codelineno-77-98" href="#__codelineno-77-98"></a> <span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="p">=</span> <span class="kr">get</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="n">i</span><span class="p">)</span>
|
||
<a id="__codelineno-77-99" name="__codelineno-77-99" href="#__codelineno-77-99"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-100" name="__codelineno-77-100" href="#__codelineno-77-100"></a> <span class="k">return</span> <span class="n">arr</span>
|
||
<a id="__codelineno-77-101" name="__codelineno-77-101" href="#__codelineno-77-101"></a> <span class="p">}</span>
|
||
<a id="__codelineno-77-102" name="__codelineno-77-102" href="#__codelineno-77-102"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.js</span><pre><span></span><code><a id="__codelineno-78-1" name="__codelineno-78-1" href="#__codelineno-78-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-78-2" name="__codelineno-78-2" href="#__codelineno-78-2"></a><span class="kd">class</span><span class="w"> </span><span class="nx">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-3" name="__codelineno-78-3" href="#__codelineno-78-3"></a><span class="w"> </span><span class="err">#</span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">();</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-78-4" name="__codelineno-78-4" href="#__codelineno-78-4"></a><span class="w"> </span><span class="err">#</span><span class="nx">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-78-5" name="__codelineno-78-5" href="#__codelineno-78-5"></a><span class="w"> </span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-78-6" name="__codelineno-78-6" href="#__codelineno-78-6"></a><span class="w"> </span><span class="err">#</span><span class="nx">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-78-7" name="__codelineno-78-7" href="#__codelineno-78-7"></a>
|
||
<a id="__codelineno-78-8" name="__codelineno-78-8" href="#__codelineno-78-8"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||
<a id="__codelineno-78-9" name="__codelineno-78-9" href="#__codelineno-78-9"></a><span class="w"> </span><span class="kr">constructor</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-10" name="__codelineno-78-10" href="#__codelineno-78-10"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="p">);</span>
|
||
<a id="__codelineno-78-11" name="__codelineno-78-11" href="#__codelineno-78-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-12" name="__codelineno-78-12" href="#__codelineno-78-12"></a>
|
||
<a id="__codelineno-78-13" name="__codelineno-78-13" href="#__codelineno-78-13"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
|
||
<a id="__codelineno-78-14" name="__codelineno-78-14" href="#__codelineno-78-14"></a><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-15" name="__codelineno-78-15" href="#__codelineno-78-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">;</span>
|
||
<a id="__codelineno-78-16" name="__codelineno-78-16" href="#__codelineno-78-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-17" name="__codelineno-78-17" href="#__codelineno-78-17"></a>
|
||
<a id="__codelineno-78-18" name="__codelineno-78-18" href="#__codelineno-78-18"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-78-19" name="__codelineno-78-19" href="#__codelineno-78-19"></a><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-20" name="__codelineno-78-20" href="#__codelineno-78-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-78-21" name="__codelineno-78-21" href="#__codelineno-78-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-22" name="__codelineno-78-22" href="#__codelineno-78-22"></a>
|
||
<a id="__codelineno-78-23" name="__codelineno-78-23" href="#__codelineno-78-23"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-78-24" name="__codelineno-78-24" href="#__codelineno-78-24"></a><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-25" name="__codelineno-78-25" href="#__codelineno-78-25"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-78-26" name="__codelineno-78-26" href="#__codelineno-78-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-78-27" name="__codelineno-78-27" href="#__codelineno-78-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
||
<a id="__codelineno-78-28" name="__codelineno-78-28" href="#__codelineno-78-28"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-29" name="__codelineno-78-29" href="#__codelineno-78-29"></a>
|
||
<a id="__codelineno-78-30" name="__codelineno-78-30" href="#__codelineno-78-30"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-78-31" name="__codelineno-78-31" href="#__codelineno-78-31"></a><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">index</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-32" name="__codelineno-78-32" href="#__codelineno-78-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-78-33" name="__codelineno-78-33" href="#__codelineno-78-33"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-78-34" name="__codelineno-78-34" href="#__codelineno-78-34"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-35" name="__codelineno-78-35" href="#__codelineno-78-35"></a>
|
||
<a id="__codelineno-78-36" name="__codelineno-78-36" href="#__codelineno-78-36"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-78-37" name="__codelineno-78-37" href="#__codelineno-78-37"></a><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-38" name="__codelineno-78-38" href="#__codelineno-78-38"></a><span class="w"> </span><span class="c1">// 如果长度等于容量，则需要扩容</span>
|
||
<a id="__codelineno-78-39" name="__codelineno-78-39" href="#__codelineno-78-39"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-40" name="__codelineno-78-40" href="#__codelineno-78-40"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-78-41" name="__codelineno-78-41" href="#__codelineno-78-41"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-42" name="__codelineno-78-42" href="#__codelineno-78-42"></a><span class="w"> </span><span class="c1">// 将新元素添加到列表尾部</span>
|
||
<a id="__codelineno-78-43" name="__codelineno-78-43" href="#__codelineno-78-43"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-78-44" name="__codelineno-78-44" href="#__codelineno-78-44"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-78-45" name="__codelineno-78-45" href="#__codelineno-78-45"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-46" name="__codelineno-78-46" href="#__codelineno-78-46"></a>
|
||
<a id="__codelineno-78-47" name="__codelineno-78-47" href="#__codelineno-78-47"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-78-48" name="__codelineno-78-48" href="#__codelineno-78-48"></a><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">index</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-49" name="__codelineno-78-49" href="#__codelineno-78-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-78-50" name="__codelineno-78-50" href="#__codelineno-78-50"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-78-51" name="__codelineno-78-51" href="#__codelineno-78-51"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-52" name="__codelineno-78-52" href="#__codelineno-78-52"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-78-53" name="__codelineno-78-53" href="#__codelineno-78-53"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-54" name="__codelineno-78-54" href="#__codelineno-78-54"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-78-55" name="__codelineno-78-55" href="#__codelineno-78-55"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-56" name="__codelineno-78-56" href="#__codelineno-78-56"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">];</span>
|
||
<a id="__codelineno-78-57" name="__codelineno-78-57" href="#__codelineno-78-57"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-58" name="__codelineno-78-58" href="#__codelineno-78-58"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-78-59" name="__codelineno-78-59" href="#__codelineno-78-59"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-78-60" name="__codelineno-78-60" href="#__codelineno-78-60"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-78-61" name="__codelineno-78-61" href="#__codelineno-78-61"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-62" name="__codelineno-78-62" href="#__codelineno-78-62"></a>
|
||
<a id="__codelineno-78-63" name="__codelineno-78-63" href="#__codelineno-78-63"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-78-64" name="__codelineno-78-64" href="#__codelineno-78-64"></a><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-65" name="__codelineno-78-65" href="#__codelineno-78-65"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-78-66" name="__codelineno-78-66" href="#__codelineno-78-66"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
||
<a id="__codelineno-78-67" name="__codelineno-78-67" href="#__codelineno-78-67"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-78-68" name="__codelineno-78-68" href="#__codelineno-78-68"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-69" name="__codelineno-78-69" href="#__codelineno-78-69"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">];</span>
|
||
<a id="__codelineno-78-70" name="__codelineno-78-70" href="#__codelineno-78-70"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-71" name="__codelineno-78-71" href="#__codelineno-78-71"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-78-72" name="__codelineno-78-72" href="#__codelineno-78-72"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-78-73" name="__codelineno-78-73" href="#__codelineno-78-73"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-78-74" name="__codelineno-78-74" href="#__codelineno-78-74"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-78-75" name="__codelineno-78-75" href="#__codelineno-78-75"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-76" name="__codelineno-78-76" href="#__codelineno-78-76"></a>
|
||
<a id="__codelineno-78-77" name="__codelineno-78-77" href="#__codelineno-78-77"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-78-78" name="__codelineno-78-78" href="#__codelineno-78-78"></a><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-79" name="__codelineno-78-79" href="#__codelineno-78-79"></a><span class="w"> </span><span class="c1">// 新建一个长度为原数组 extendRatio 倍的新数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-78-80" name="__codelineno-78-80" href="#__codelineno-78-80"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">.</span><span class="nx">concat</span><span class="p">(</span>
|
||
<a id="__codelineno-78-81" name="__codelineno-78-81" href="#__codelineno-78-81"></a><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">extendRatio</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">))</span>
|
||
<a id="__codelineno-78-82" name="__codelineno-78-82" href="#__codelineno-78-82"></a><span class="w"> </span><span class="p">);</span>
|
||
<a id="__codelineno-78-83" name="__codelineno-78-83" href="#__codelineno-78-83"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-78-84" name="__codelineno-78-84" href="#__codelineno-78-84"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">arr</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
|
||
<a id="__codelineno-78-85" name="__codelineno-78-85" href="#__codelineno-78-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-86" name="__codelineno-78-86" href="#__codelineno-78-86"></a>
|
||
<a id="__codelineno-78-87" name="__codelineno-78-87" href="#__codelineno-78-87"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
|
||
<a id="__codelineno-78-88" name="__codelineno-78-88" href="#__codelineno-78-88"></a><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-89" name="__codelineno-78-89" href="#__codelineno-78-89"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">size</span><span class="p">();</span>
|
||
<a id="__codelineno-78-90" name="__codelineno-78-90" href="#__codelineno-78-90"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||
<a id="__codelineno-78-91" name="__codelineno-78-91" href="#__codelineno-78-91"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">size</span><span class="p">);</span>
|
||
<a id="__codelineno-78-92" name="__codelineno-78-92" href="#__codelineno-78-92"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">size</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-78-93" name="__codelineno-78-93" href="#__codelineno-78-93"></a><span class="w"> </span><span class="nx">arr</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">i</span><span class="p">);</span>
|
||
<a id="__codelineno-78-94" name="__codelineno-78-94" href="#__codelineno-78-94"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-95" name="__codelineno-78-95" href="#__codelineno-78-95"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-78-96" name="__codelineno-78-96" href="#__codelineno-78-96"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-78-97" name="__codelineno-78-97" href="#__codelineno-78-97"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.ts</span><pre><span></span><code><a id="__codelineno-79-1" name="__codelineno-79-1" href="#__codelineno-79-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-79-2" name="__codelineno-79-2" href="#__codelineno-79-2"></a><span class="kd">class</span><span class="w"> </span><span class="nx">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-3" name="__codelineno-79-3" href="#__codelineno-79-3"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">arr</span><span class="o">:</span><span class="w"> </span><span class="kt">Array</span><span class="o"><</span><span class="kt">number</span><span class="o">></span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-79-4" name="__codelineno-79-4" href="#__codelineno-79-4"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">_capacity</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-79-5" name="__codelineno-79-5" href="#__codelineno-79-5"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">_size</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-79-6" name="__codelineno-79-6" href="#__codelineno-79-6"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">extendRatio</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-79-7" name="__codelineno-79-7" href="#__codelineno-79-7"></a>
|
||
<a id="__codelineno-79-8" name="__codelineno-79-8" href="#__codelineno-79-8"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||
<a id="__codelineno-79-9" name="__codelineno-79-9" href="#__codelineno-79-9"></a><span class="w"> </span><span class="kr">constructor</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-10" name="__codelineno-79-10" href="#__codelineno-79-10"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">);</span>
|
||
<a id="__codelineno-79-11" name="__codelineno-79-11" href="#__codelineno-79-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-12" name="__codelineno-79-12" href="#__codelineno-79-12"></a>
|
||
<a id="__codelineno-79-13" name="__codelineno-79-13" href="#__codelineno-79-13"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
|
||
<a id="__codelineno-79-14" name="__codelineno-79-14" href="#__codelineno-79-14"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-15" name="__codelineno-79-15" href="#__codelineno-79-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">;</span>
|
||
<a id="__codelineno-79-16" name="__codelineno-79-16" href="#__codelineno-79-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-17" name="__codelineno-79-17" href="#__codelineno-79-17"></a>
|
||
<a id="__codelineno-79-18" name="__codelineno-79-18" href="#__codelineno-79-18"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-79-19" name="__codelineno-79-19" href="#__codelineno-79-19"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-20" name="__codelineno-79-20" href="#__codelineno-79-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-79-21" name="__codelineno-79-21" href="#__codelineno-79-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-22" name="__codelineno-79-22" href="#__codelineno-79-22"></a>
|
||
<a id="__codelineno-79-23" name="__codelineno-79-23" href="#__codelineno-79-23"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-79-24" name="__codelineno-79-24" href="#__codelineno-79-24"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-25" name="__codelineno-79-25" href="#__codelineno-79-25"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-79-26" name="__codelineno-79-26" href="#__codelineno-79-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-79-27" name="__codelineno-79-27" href="#__codelineno-79-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
||
<a id="__codelineno-79-28" name="__codelineno-79-28" href="#__codelineno-79-28"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-29" name="__codelineno-79-29" href="#__codelineno-79-29"></a>
|
||
<a id="__codelineno-79-30" name="__codelineno-79-30" href="#__codelineno-79-30"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-79-31" name="__codelineno-79-31" href="#__codelineno-79-31"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-32" name="__codelineno-79-32" href="#__codelineno-79-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-79-33" name="__codelineno-79-33" href="#__codelineno-79-33"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-79-34" name="__codelineno-79-34" href="#__codelineno-79-34"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-35" name="__codelineno-79-35" href="#__codelineno-79-35"></a>
|
||
<a id="__codelineno-79-36" name="__codelineno-79-36" href="#__codelineno-79-36"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-79-37" name="__codelineno-79-37" href="#__codelineno-79-37"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-38" name="__codelineno-79-38" href="#__codelineno-79-38"></a><span class="w"> </span><span class="c1">// 如果长度等于容量，则需要扩容</span>
|
||
<a id="__codelineno-79-39" name="__codelineno-79-39" href="#__codelineno-79-39"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">)</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-79-40" name="__codelineno-79-40" href="#__codelineno-79-40"></a><span class="w"> </span><span class="c1">// 将新元素添加到列表尾部</span>
|
||
<a id="__codelineno-79-41" name="__codelineno-79-41" href="#__codelineno-79-41"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-79-42" name="__codelineno-79-42" href="#__codelineno-79-42"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-79-43" name="__codelineno-79-43" href="#__codelineno-79-43"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-44" name="__codelineno-79-44" href="#__codelineno-79-44"></a>
|
||
<a id="__codelineno-79-45" name="__codelineno-79-45" href="#__codelineno-79-45"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-79-46" name="__codelineno-79-46" href="#__codelineno-79-46"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-47" name="__codelineno-79-47" href="#__codelineno-79-47"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-79-48" name="__codelineno-79-48" href="#__codelineno-79-48"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-79-49" name="__codelineno-79-49" href="#__codelineno-79-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-50" name="__codelineno-79-50" href="#__codelineno-79-50"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-79-51" name="__codelineno-79-51" href="#__codelineno-79-51"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-52" name="__codelineno-79-52" href="#__codelineno-79-52"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-79-53" name="__codelineno-79-53" href="#__codelineno-79-53"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-54" name="__codelineno-79-54" href="#__codelineno-79-54"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">];</span>
|
||
<a id="__codelineno-79-55" name="__codelineno-79-55" href="#__codelineno-79-55"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-56" name="__codelineno-79-56" href="#__codelineno-79-56"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-79-57" name="__codelineno-79-57" href="#__codelineno-79-57"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-79-58" name="__codelineno-79-58" href="#__codelineno-79-58"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-79-59" name="__codelineno-79-59" href="#__codelineno-79-59"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-60" name="__codelineno-79-60" href="#__codelineno-79-60"></a>
|
||
<a id="__codelineno-79-61" name="__codelineno-79-61" href="#__codelineno-79-61"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-79-62" name="__codelineno-79-62" href="#__codelineno-79-62"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-63" name="__codelineno-79-63" href="#__codelineno-79-63"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-79-64" name="__codelineno-79-64" href="#__codelineno-79-64"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
||
<a id="__codelineno-79-65" name="__codelineno-79-65" href="#__codelineno-79-65"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-79-66" name="__codelineno-79-66" href="#__codelineno-79-66"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-67" name="__codelineno-79-67" href="#__codelineno-79-67"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">];</span>
|
||
<a id="__codelineno-79-68" name="__codelineno-79-68" href="#__codelineno-79-68"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-69" name="__codelineno-79-69" href="#__codelineno-79-69"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-79-70" name="__codelineno-79-70" href="#__codelineno-79-70"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-79-71" name="__codelineno-79-71" href="#__codelineno-79-71"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-79-72" name="__codelineno-79-72" href="#__codelineno-79-72"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-79-73" name="__codelineno-79-73" href="#__codelineno-79-73"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-74" name="__codelineno-79-74" href="#__codelineno-79-74"></a>
|
||
<a id="__codelineno-79-75" name="__codelineno-79-75" href="#__codelineno-79-75"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-79-76" name="__codelineno-79-76" href="#__codelineno-79-76"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-77" name="__codelineno-79-77" href="#__codelineno-79-77"></a><span class="w"> </span><span class="c1">// 新建一个长度为 size 的数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-79-78" name="__codelineno-79-78" href="#__codelineno-79-78"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">.</span><span class="nx">concat</span><span class="p">(</span>
|
||
<a id="__codelineno-79-79" name="__codelineno-79-79" href="#__codelineno-79-79"></a><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">extendRatio</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">))</span>
|
||
<a id="__codelineno-79-80" name="__codelineno-79-80" href="#__codelineno-79-80"></a><span class="w"> </span><span class="p">);</span>
|
||
<a id="__codelineno-79-81" name="__codelineno-79-81" href="#__codelineno-79-81"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-79-82" name="__codelineno-79-82" href="#__codelineno-79-82"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
|
||
<a id="__codelineno-79-83" name="__codelineno-79-83" href="#__codelineno-79-83"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-84" name="__codelineno-79-84" href="#__codelineno-79-84"></a>
|
||
<a id="__codelineno-79-85" name="__codelineno-79-85" href="#__codelineno-79-85"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
|
||
<a id="__codelineno-79-86" name="__codelineno-79-86" href="#__codelineno-79-86"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-87" name="__codelineno-79-87" href="#__codelineno-79-87"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">size</span><span class="p">();</span>
|
||
<a id="__codelineno-79-88" name="__codelineno-79-88" href="#__codelineno-79-88"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||
<a id="__codelineno-79-89" name="__codelineno-79-89" href="#__codelineno-79-89"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">size</span><span class="p">);</span>
|
||
<a id="__codelineno-79-90" name="__codelineno-79-90" href="#__codelineno-79-90"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">size</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-91" name="__codelineno-79-91" href="#__codelineno-79-91"></a><span class="w"> </span><span class="nx">arr</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">i</span><span class="p">);</span>
|
||
<a id="__codelineno-79-92" name="__codelineno-79-92" href="#__codelineno-79-92"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-93" name="__codelineno-79-93" href="#__codelineno-79-93"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-79-94" name="__codelineno-79-94" href="#__codelineno-79-94"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-95" name="__codelineno-79-95" href="#__codelineno-79-95"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.dart</span><pre><span></span><code><a id="__codelineno-80-1" name="__codelineno-80-1" href="#__codelineno-80-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-80-2" name="__codelineno-80-2" href="#__codelineno-80-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-3" name="__codelineno-80-3" href="#__codelineno-80-3"></a><span class="w"> </span><span class="kd">late</span><span class="w"> </span><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">_arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-80-4" name="__codelineno-80-4" href="#__codelineno-80-4"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-80-5" name="__codelineno-80-5" href="#__codelineno-80-5"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-80-6" name="__codelineno-80-6" href="#__codelineno-80-6"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-80-7" name="__codelineno-80-7" href="#__codelineno-80-7"></a>
|
||
<a id="__codelineno-80-8" name="__codelineno-80-8" href="#__codelineno-80-8"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||
<a id="__codelineno-80-9" name="__codelineno-80-9" href="#__codelineno-80-9"></a><span class="w"> </span><span class="n">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-10" name="__codelineno-80-10" href="#__codelineno-80-10"></a><span class="w"> </span><span class="n">_arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">List</span><span class="p">.</span><span class="n">filled</span><span class="p">(</span><span class="n">_capacity</span><span class="p">,</span><span class="w"> </span><span class="m">0</span><span class="p">);</span>
|
||
<a id="__codelineno-80-11" name="__codelineno-80-11" href="#__codelineno-80-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-12" name="__codelineno-80-12" href="#__codelineno-80-12"></a>
|
||
<a id="__codelineno-80-13" name="__codelineno-80-13" href="#__codelineno-80-13"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
|
||
<a id="__codelineno-80-14" name="__codelineno-80-14" href="#__codelineno-80-14"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="n">_size</span><span class="p">;</span>
|
||
<a id="__codelineno-80-15" name="__codelineno-80-15" href="#__codelineno-80-15"></a>
|
||
<a id="__codelineno-80-16" name="__codelineno-80-16" href="#__codelineno-80-16"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-80-17" name="__codelineno-80-17" href="#__codelineno-80-17"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="n">_capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-80-18" name="__codelineno-80-18" href="#__codelineno-80-18"></a>
|
||
<a id="__codelineno-80-19" name="__codelineno-80-19" href="#__codelineno-80-19"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-80-20" name="__codelineno-80-20" href="#__codelineno-80-20"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="kd">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-21" name="__codelineno-80-21" href="#__codelineno-80-21"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">RangeError</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-80-22" name="__codelineno-80-22" href="#__codelineno-80-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-80-23" name="__codelineno-80-23" href="#__codelineno-80-23"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-24" name="__codelineno-80-24" href="#__codelineno-80-24"></a>
|
||
<a id="__codelineno-80-25" name="__codelineno-80-25" href="#__codelineno-80-25"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-80-26" name="__codelineno-80-26" href="#__codelineno-80-26"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="kd">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-27" name="__codelineno-80-27" href="#__codelineno-80-27"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">RangeError</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-80-28" name="__codelineno-80-28" href="#__codelineno-80-28"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_num</span><span class="p">;</span>
|
||
<a id="__codelineno-80-29" name="__codelineno-80-29" href="#__codelineno-80-29"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-30" name="__codelineno-80-30" href="#__codelineno-80-30"></a>
|
||
<a id="__codelineno-80-31" name="__codelineno-80-31" href="#__codelineno-80-31"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-80-32" name="__codelineno-80-32" href="#__codelineno-80-32"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">_num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-33" name="__codelineno-80-33" href="#__codelineno-80-33"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-80-34" name="__codelineno-80-34" href="#__codelineno-80-34"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">_size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">_capacity</span><span class="p">)</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-80-35" name="__codelineno-80-35" href="#__codelineno-80-35"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">_size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_num</span><span class="p">;</span>
|
||
<a id="__codelineno-80-36" name="__codelineno-80-36" href="#__codelineno-80-36"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-80-37" name="__codelineno-80-37" href="#__codelineno-80-37"></a><span class="w"> </span><span class="n">_size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-80-38" name="__codelineno-80-38" href="#__codelineno-80-38"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-39" name="__codelineno-80-39" href="#__codelineno-80-39"></a>
|
||
<a id="__codelineno-80-40" name="__codelineno-80-40" href="#__codelineno-80-40"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-80-41" name="__codelineno-80-41" href="#__codelineno-80-41"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-42" name="__codelineno-80-42" href="#__codelineno-80-42"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">RangeError</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-80-43" name="__codelineno-80-43" href="#__codelineno-80-43"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-80-44" name="__codelineno-80-44" href="#__codelineno-80-44"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">_size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">_capacity</span><span class="p">)</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-80-45" name="__codelineno-80-45" href="#__codelineno-80-45"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-80-46" name="__codelineno-80-46" href="#__codelineno-80-46"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-47" name="__codelineno-80-47" href="#__codelineno-80-47"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-80-48" name="__codelineno-80-48" href="#__codelineno-80-48"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-49" name="__codelineno-80-49" href="#__codelineno-80-49"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_num</span><span class="p">;</span>
|
||
<a id="__codelineno-80-50" name="__codelineno-80-50" href="#__codelineno-80-50"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-80-51" name="__codelineno-80-51" href="#__codelineno-80-51"></a><span class="w"> </span><span class="n">_size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-80-52" name="__codelineno-80-52" href="#__codelineno-80-52"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-53" name="__codelineno-80-53" href="#__codelineno-80-53"></a>
|
||
<a id="__codelineno-80-54" name="__codelineno-80-54" href="#__codelineno-80-54"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-80-55" name="__codelineno-80-55" href="#__codelineno-80-55"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-56" name="__codelineno-80-56" href="#__codelineno-80-56"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">RangeError</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
||
<a id="__codelineno-80-57" name="__codelineno-80-57" href="#__codelineno-80-57"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-80-58" name="__codelineno-80-58" href="#__codelineno-80-58"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-80-59" name="__codelineno-80-59" href="#__codelineno-80-59"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-60" name="__codelineno-80-60" href="#__codelineno-80-60"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">];</span>
|
||
<a id="__codelineno-80-61" name="__codelineno-80-61" href="#__codelineno-80-61"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-62" name="__codelineno-80-62" href="#__codelineno-80-62"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-80-63" name="__codelineno-80-63" href="#__codelineno-80-63"></a><span class="w"> </span><span class="n">_size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-80-64" name="__codelineno-80-64" href="#__codelineno-80-64"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-80-65" name="__codelineno-80-65" href="#__codelineno-80-65"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">_num</span><span class="p">;</span>
|
||
<a id="__codelineno-80-66" name="__codelineno-80-66" href="#__codelineno-80-66"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-67" name="__codelineno-80-67" href="#__codelineno-80-67"></a>
|
||
<a id="__codelineno-80-68" name="__codelineno-80-68" href="#__codelineno-80-68"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-80-69" name="__codelineno-80-69" href="#__codelineno-80-69"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-70" name="__codelineno-80-70" href="#__codelineno-80-70"></a><span class="w"> </span><span class="c1">// 新建一个长度为原数组 _extendRatio 倍的新数组</span>
|
||
<a id="__codelineno-80-71" name="__codelineno-80-71" href="#__codelineno-80-71"></a><span class="w"> </span><span class="kd">final</span><span class="w"> </span><span class="n">_newNums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">List</span><span class="p">.</span><span class="n">filled</span><span class="p">(</span><span class="n">_capacity</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">_extendRatio</span><span class="p">,</span><span class="w"> </span><span class="m">0</span><span class="p">);</span>
|
||
<a id="__codelineno-80-72" name="__codelineno-80-72" href="#__codelineno-80-72"></a><span class="w"> </span><span class="c1">// 将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-80-73" name="__codelineno-80-73" href="#__codelineno-80-73"></a><span class="w"> </span><span class="n">List</span><span class="p">.</span><span class="n">copyRange</span><span class="p">(</span><span class="n">_newNums</span><span class="p">,</span><span class="w"> </span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="n">_arr</span><span class="p">);</span>
|
||
<a id="__codelineno-80-74" name="__codelineno-80-74" href="#__codelineno-80-74"></a><span class="w"> </span><span class="c1">// 更新 _arr 的引用</span>
|
||
<a id="__codelineno-80-75" name="__codelineno-80-75" href="#__codelineno-80-75"></a><span class="w"> </span><span class="n">_arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_newNums</span><span class="p">;</span>
|
||
<a id="__codelineno-80-76" name="__codelineno-80-76" href="#__codelineno-80-76"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-80-77" name="__codelineno-80-77" href="#__codelineno-80-77"></a><span class="w"> </span><span class="n">_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_arr</span><span class="p">.</span><span class="n">length</span><span class="p">;</span>
|
||
<a id="__codelineno-80-78" name="__codelineno-80-78" href="#__codelineno-80-78"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-79" name="__codelineno-80-79" href="#__codelineno-80-79"></a>
|
||
<a id="__codelineno-80-80" name="__codelineno-80-80" href="#__codelineno-80-80"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
|
||
<a id="__codelineno-80-81" name="__codelineno-80-81" href="#__codelineno-80-81"></a><span class="w"> </span><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-82" name="__codelineno-80-82" href="#__codelineno-80-82"></a><span class="w"> </span><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-80-83" name="__codelineno-80-83" href="#__codelineno-80-83"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">_size</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-84" name="__codelineno-80-84" href="#__codelineno-80-84"></a><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="kd">get</span><span class="p">(</span><span class="n">i</span><span class="p">));</span>
|
||
<a id="__codelineno-80-85" name="__codelineno-80-85" href="#__codelineno-80-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-86" name="__codelineno-80-86" href="#__codelineno-80-86"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-80-87" name="__codelineno-80-87" href="#__codelineno-80-87"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-88" name="__codelineno-80-88" href="#__codelineno-80-88"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.rs</span><pre><span></span><code><a id="__codelineno-81-1" name="__codelineno-81-1" href="#__codelineno-81-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-81-2" name="__codelineno-81-2" href="#__codelineno-81-2"></a><span class="cp">#[allow(dead_code)]</span>
|
||
<a id="__codelineno-81-3" name="__codelineno-81-3" href="#__codelineno-81-3"></a><span class="k">struct</span> <span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-4" name="__codelineno-81-4" href="#__codelineno-81-4"></a><span class="w"> </span><span class="n">arr</span>: <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="p">,</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-81-5" name="__codelineno-81-5" href="#__codelineno-81-5"></a><span class="w"> </span><span class="n">capacity</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-81-6" name="__codelineno-81-6" href="#__codelineno-81-6"></a><span class="w"> </span><span class="n">size</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-81-7" name="__codelineno-81-7" href="#__codelineno-81-7"></a><span class="w"> </span><span class="n">extend_ratio</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-81-8" name="__codelineno-81-8" href="#__codelineno-81-8"></a><span class="p">}</span>
|
||
<a id="__codelineno-81-9" name="__codelineno-81-9" href="#__codelineno-81-9"></a>
|
||
<a id="__codelineno-81-10" name="__codelineno-81-10" href="#__codelineno-81-10"></a><span class="cp">#[allow(unused,unused_comparisons)]</span>
|
||
<a id="__codelineno-81-11" name="__codelineno-81-11" href="#__codelineno-81-11"></a><span class="k">impl</span><span class="w"> </span><span class="n">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-12" name="__codelineno-81-12" href="#__codelineno-81-12"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||
<a id="__codelineno-81-13" name="__codelineno-81-13" href="#__codelineno-81-13"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">new</span><span class="p">(</span><span class="n">capacity</span>: <span class="kt">usize</span><span class="p">)</span><span class="w"> </span>-> <span class="nc">Self</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-14" name="__codelineno-81-14" href="#__codelineno-81-14"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">vec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Vec</span>::<span class="n">new</span><span class="p">();</span><span class="w"> </span>
|
||
<a id="__codelineno-81-15" name="__codelineno-81-15" href="#__codelineno-81-15"></a><span class="w"> </span><span class="n">vec</span><span class="p">.</span><span class="n">resize</span><span class="p">(</span><span class="n">capacity</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span>
|
||
<a id="__codelineno-81-16" name="__codelineno-81-16" href="#__codelineno-81-16"></a><span class="w"> </span><span class="bp">Self</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-17" name="__codelineno-81-17" href="#__codelineno-81-17"></a><span class="w"> </span><span class="n">arr</span>: <span class="nc">vec</span><span class="p">,</span>
|
||
<a id="__codelineno-81-18" name="__codelineno-81-18" href="#__codelineno-81-18"></a><span class="w"> </span><span class="n">capacity</span><span class="p">,</span>
|
||
<a id="__codelineno-81-19" name="__codelineno-81-19" href="#__codelineno-81-19"></a><span class="w"> </span><span class="n">size</span>: <span class="mi">0</span><span class="p">,</span>
|
||
<a id="__codelineno-81-20" name="__codelineno-81-20" href="#__codelineno-81-20"></a><span class="w"> </span><span class="n">extend_ratio</span>: <span class="mi">2</span><span class="p">,</span>
|
||
<a id="__codelineno-81-21" name="__codelineno-81-21" href="#__codelineno-81-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-22" name="__codelineno-81-22" href="#__codelineno-81-22"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-23" name="__codelineno-81-23" href="#__codelineno-81-23"></a>
|
||
<a id="__codelineno-81-24" name="__codelineno-81-24" href="#__codelineno-81-24"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
|
||
<a id="__codelineno-81-25" name="__codelineno-81-25" href="#__codelineno-81-25"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">size</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="kt">usize</span> <span class="p">{</span>
|
||
<a id="__codelineno-81-26" name="__codelineno-81-26" href="#__codelineno-81-26"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">;</span>
|
||
<a id="__codelineno-81-27" name="__codelineno-81-27" href="#__codelineno-81-27"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-28" name="__codelineno-81-28" href="#__codelineno-81-28"></a>
|
||
<a id="__codelineno-81-29" name="__codelineno-81-29" href="#__codelineno-81-29"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-81-30" name="__codelineno-81-30" href="#__codelineno-81-30"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">capacity</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="kt">usize</span> <span class="p">{</span>
|
||
<a id="__codelineno-81-31" name="__codelineno-81-31" href="#__codelineno-81-31"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-81-32" name="__codelineno-81-32" href="#__codelineno-81-32"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-33" name="__codelineno-81-33" href="#__codelineno-81-33"></a>
|
||
<a id="__codelineno-81-34" name="__codelineno-81-34" href="#__codelineno-81-34"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-81-35" name="__codelineno-81-35" href="#__codelineno-81-35"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">get</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span>: <span class="kt">usize</span><span class="p">)</span><span class="w"> </span>-> <span class="kt">i32</span> <span class="p">{</span>
|
||
<a id="__codelineno-81-36" name="__codelineno-81-36" href="#__codelineno-81-36"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-81-37" name="__codelineno-81-37" href="#__codelineno-81-37"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="p">{</span><span class="fm">panic!</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)};</span>
|
||
<a id="__codelineno-81-38" name="__codelineno-81-38" href="#__codelineno-81-38"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-81-39" name="__codelineno-81-39" href="#__codelineno-81-39"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-40" name="__codelineno-81-40" href="#__codelineno-81-40"></a>
|
||
<a id="__codelineno-81-41" name="__codelineno-81-41" href="#__codelineno-81-41"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-81-42" name="__codelineno-81-42" href="#__codelineno-81-42"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">set</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="n">num</span>: <span class="kt">i32</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-43" name="__codelineno-81-43" href="#__codelineno-81-43"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="p">{</span><span class="fm">panic!</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)};</span>
|
||
<a id="__codelineno-81-44" name="__codelineno-81-44" href="#__codelineno-81-44"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-81-45" name="__codelineno-81-45" href="#__codelineno-81-45"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-46" name="__codelineno-81-46" href="#__codelineno-81-46"></a>
|
||
<a id="__codelineno-81-47" name="__codelineno-81-47" href="#__codelineno-81-47"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-81-48" name="__codelineno-81-48" href="#__codelineno-81-48"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">add</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">num</span>: <span class="kt">i32</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-49" name="__codelineno-81-49" href="#__codelineno-81-49"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-81-50" name="__codelineno-81-50" href="#__codelineno-81-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-51" name="__codelineno-81-51" href="#__codelineno-81-51"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">extend_capacity</span><span class="p">();</span>
|
||
<a id="__codelineno-81-52" name="__codelineno-81-52" href="#__codelineno-81-52"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-53" name="__codelineno-81-53" href="#__codelineno-81-53"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-81-54" name="__codelineno-81-54" href="#__codelineno-81-54"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-81-55" name="__codelineno-81-55" href="#__codelineno-81-55"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-81-56" name="__codelineno-81-56" href="#__codelineno-81-56"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-57" name="__codelineno-81-57" href="#__codelineno-81-57"></a>
|
||
<a id="__codelineno-81-58" name="__codelineno-81-58" href="#__codelineno-81-58"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-81-59" name="__codelineno-81-59" href="#__codelineno-81-59"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">insert</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="n">num</span>: <span class="kt">i32</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-60" name="__codelineno-81-60" href="#__codelineno-81-60"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="fm">panic!</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)};</span>
|
||
<a id="__codelineno-81-61" name="__codelineno-81-61" href="#__codelineno-81-61"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-81-62" name="__codelineno-81-62" href="#__codelineno-81-62"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-63" name="__codelineno-81-63" href="#__codelineno-81-63"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">extend_capacity</span><span class="p">();</span>
|
||
<a id="__codelineno-81-64" name="__codelineno-81-64" href="#__codelineno-81-64"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-65" name="__codelineno-81-65" href="#__codelineno-81-65"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-81-66" name="__codelineno-81-66" href="#__codelineno-81-66"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="o">..</span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">).</span><span class="n">rev</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-67" name="__codelineno-81-67" href="#__codelineno-81-67"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-81-68" name="__codelineno-81-68" href="#__codelineno-81-68"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-69" name="__codelineno-81-69" href="#__codelineno-81-69"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-81-70" name="__codelineno-81-70" href="#__codelineno-81-70"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-81-71" name="__codelineno-81-71" href="#__codelineno-81-71"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-81-72" name="__codelineno-81-72" href="#__codelineno-81-72"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-73" name="__codelineno-81-73" href="#__codelineno-81-73"></a>
|
||
<a id="__codelineno-81-74" name="__codelineno-81-74" href="#__codelineno-81-74"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-81-75" name="__codelineno-81-75" href="#__codelineno-81-75"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">remove</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span>: <span class="kt">usize</span><span class="p">)</span><span class="w"> </span>-> <span class="kt">i32</span> <span class="p">{</span>
|
||
<a id="__codelineno-81-76" name="__codelineno-81-76" href="#__codelineno-81-76"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="fm">panic!</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)};</span>
|
||
<a id="__codelineno-81-77" name="__codelineno-81-77" href="#__codelineno-81-77"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-81-78" name="__codelineno-81-78" href="#__codelineno-81-78"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-81-79" name="__codelineno-81-79" href="#__codelineno-81-79"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="o">..</span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-80" name="__codelineno-81-80" href="#__codelineno-81-80"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-81-81" name="__codelineno-81-81" href="#__codelineno-81-81"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-82" name="__codelineno-81-82" href="#__codelineno-81-82"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-81-83" name="__codelineno-81-83" href="#__codelineno-81-83"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-81-84" name="__codelineno-81-84" href="#__codelineno-81-84"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-81-85" name="__codelineno-81-85" href="#__codelineno-81-85"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-81-86" name="__codelineno-81-86" href="#__codelineno-81-86"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-87" name="__codelineno-81-87" href="#__codelineno-81-87"></a>
|
||
<a id="__codelineno-81-88" name="__codelineno-81-88" href="#__codelineno-81-88"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-81-89" name="__codelineno-81-89" href="#__codelineno-81-89"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">extend_capacity</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-90" name="__codelineno-81-90" href="#__codelineno-81-90"></a><span class="w"> </span><span class="c1">// 新建一个长度为原数组 extend_ratio 倍的新数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-81-91" name="__codelineno-81-91" href="#__codelineno-81-91"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">new_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">extend_ratio</span><span class="p">;</span>
|
||
<a id="__codelineno-81-92" name="__codelineno-81-92" href="#__codelineno-81-92"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">.</span><span class="n">resize</span><span class="p">(</span><span class="n">new_capacity</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span>
|
||
<a id="__codelineno-81-93" name="__codelineno-81-93" href="#__codelineno-81-93"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-81-94" name="__codelineno-81-94" href="#__codelineno-81-94"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">new_capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-81-95" name="__codelineno-81-95" href="#__codelineno-81-95"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-96" name="__codelineno-81-96" href="#__codelineno-81-96"></a>
|
||
<a id="__codelineno-81-97" name="__codelineno-81-97" href="#__codelineno-81-97"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
|
||
<a id="__codelineno-81-98" name="__codelineno-81-98" href="#__codelineno-81-98"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">to_array</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-99" name="__codelineno-81-99" href="#__codelineno-81-99"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||
<a id="__codelineno-81-100" name="__codelineno-81-100" href="#__codelineno-81-100"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Vec</span>::<span class="n">new</span><span class="p">();</span>
|
||
<a id="__codelineno-81-101" name="__codelineno-81-101" href="#__codelineno-81-101"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="mi">0</span><span class="o">..</span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-102" name="__codelineno-81-102" href="#__codelineno-81-102"></a><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="bp">self</span><span class="p">.</span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">));</span>
|
||
<a id="__codelineno-81-103" name="__codelineno-81-103" href="#__codelineno-81-103"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-104" name="__codelineno-81-104" href="#__codelineno-81-104"></a><span class="w"> </span><span class="n">arr</span>
|
||
<a id="__codelineno-81-105" name="__codelineno-81-105" href="#__codelineno-81-105"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-106" name="__codelineno-81-106" href="#__codelineno-81-106"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.c</span><pre><span></span><code><a id="__codelineno-82-1" name="__codelineno-82-1" href="#__codelineno-82-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
||
<a id="__codelineno-82-2" name="__codelineno-82-2" href="#__codelineno-82-2"></a><span class="k">typedef</span><span class="w"> </span><span class="k">struct</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-3" name="__codelineno-82-3" href="#__codelineno-82-3"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-82-4" name="__codelineno-82-4" href="#__codelineno-82-4"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-82-5" name="__codelineno-82-5" href="#__codelineno-82-5"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表大小</span>
|
||
<a id="__codelineno-82-6" name="__codelineno-82-6" href="#__codelineno-82-6"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表每次扩容的倍数</span>
|
||
<a id="__codelineno-82-7" name="__codelineno-82-7" href="#__codelineno-82-7"></a><span class="p">}</span><span class="w"> </span><span class="n">MyList</span><span class="p">;</span>
|
||
<a id="__codelineno-82-8" name="__codelineno-82-8" href="#__codelineno-82-8"></a>
|
||
<a id="__codelineno-82-9" name="__codelineno-82-9" href="#__codelineno-82-9"></a><span class="cm">/* 构造函数 */</span>
|
||
<a id="__codelineno-82-10" name="__codelineno-82-10" href="#__codelineno-82-10"></a><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="nf">newMyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-11" name="__codelineno-82-11" href="#__codelineno-82-11"></a><span class="w"> </span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="n">MyList</span><span class="p">));</span>
|
||
<a id="__codelineno-82-12" name="__codelineno-82-12" href="#__codelineno-82-12"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span>
|
||
<a id="__codelineno-82-13" name="__codelineno-82-13" href="#__codelineno-82-13"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">capacity</span><span class="p">);</span>
|
||
<a id="__codelineno-82-14" name="__codelineno-82-14" href="#__codelineno-82-14"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-82-15" name="__codelineno-82-15" href="#__codelineno-82-15"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span>
|
||
<a id="__codelineno-82-16" name="__codelineno-82-16" href="#__codelineno-82-16"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
|
||
<a id="__codelineno-82-17" name="__codelineno-82-17" href="#__codelineno-82-17"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-18" name="__codelineno-82-18" href="#__codelineno-82-18"></a>
|
||
<a id="__codelineno-82-19" name="__codelineno-82-19" href="#__codelineno-82-19"></a><span class="cm">/* 析构函数 */</span>
|
||
<a id="__codelineno-82-20" name="__codelineno-82-20" href="#__codelineno-82-20"></a><span class="kt">void</span><span class="w"> </span><span class="nf">delMyList</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-21" name="__codelineno-82-21" href="#__codelineno-82-21"></a><span class="w"> </span><span class="n">free</span><span class="p">(</span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">);</span>
|
||
<a id="__codelineno-82-22" name="__codelineno-82-22" href="#__codelineno-82-22"></a><span class="w"> </span><span class="n">free</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span>
|
||
<a id="__codelineno-82-23" name="__codelineno-82-23" href="#__codelineno-82-23"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-24" name="__codelineno-82-24" href="#__codelineno-82-24"></a>
|
||
<a id="__codelineno-82-25" name="__codelineno-82-25" href="#__codelineno-82-25"></a><span class="cm">/* 获取列表长度 */</span>
|
||
<a id="__codelineno-82-26" name="__codelineno-82-26" href="#__codelineno-82-26"></a><span class="kt">int</span><span class="w"> </span><span class="nf">size</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-27" name="__codelineno-82-27" href="#__codelineno-82-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="p">;</span>
|
||
<a id="__codelineno-82-28" name="__codelineno-82-28" href="#__codelineno-82-28"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-29" name="__codelineno-82-29" href="#__codelineno-82-29"></a>
|
||
<a id="__codelineno-82-30" name="__codelineno-82-30" href="#__codelineno-82-30"></a><span class="cm">/* 获取列表容量 */</span>
|
||
<a id="__codelineno-82-31" name="__codelineno-82-31" href="#__codelineno-82-31"></a><span class="kt">int</span><span class="w"> </span><span class="nf">capacity</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-32" name="__codelineno-82-32" href="#__codelineno-82-32"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-82-33" name="__codelineno-82-33" href="#__codelineno-82-33"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-34" name="__codelineno-82-34" href="#__codelineno-82-34"></a>
|
||
<a id="__codelineno-82-35" name="__codelineno-82-35" href="#__codelineno-82-35"></a><span class="cm">/* 访问元素 */</span>
|
||
<a id="__codelineno-82-36" name="__codelineno-82-36" href="#__codelineno-82-36"></a><span class="kt">int</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-37" name="__codelineno-82-37" href="#__codelineno-82-37"></a><span class="w"> </span><span class="n">assert</span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="p">);</span>
|
||
<a id="__codelineno-82-38" name="__codelineno-82-38" href="#__codelineno-82-38"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-82-39" name="__codelineno-82-39" href="#__codelineno-82-39"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-40" name="__codelineno-82-40" href="#__codelineno-82-40"></a>
|
||
<a id="__codelineno-82-41" name="__codelineno-82-41" href="#__codelineno-82-41"></a><span class="cm">/* 更新元素 */</span>
|
||
<a id="__codelineno-82-42" name="__codelineno-82-42" href="#__codelineno-82-42"></a><span class="kt">void</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-43" name="__codelineno-82-43" href="#__codelineno-82-43"></a><span class="w"> </span><span class="n">assert</span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="p">);</span>
|
||
<a id="__codelineno-82-44" name="__codelineno-82-44" href="#__codelineno-82-44"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-82-45" name="__codelineno-82-45" href="#__codelineno-82-45"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-46" name="__codelineno-82-46" href="#__codelineno-82-46"></a>
|
||
<a id="__codelineno-82-47" name="__codelineno-82-47" href="#__codelineno-82-47"></a><span class="cm">/* 尾部添加元素 */</span>
|
||
<a id="__codelineno-82-48" name="__codelineno-82-48" href="#__codelineno-82-48"></a><span class="kt">void</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-49" name="__codelineno-82-49" href="#__codelineno-82-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">(</span><span class="n">nums</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-50" name="__codelineno-82-50" href="#__codelineno-82-50"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="c1">// 扩容</span>
|
||
<a id="__codelineno-82-51" name="__codelineno-82-51" href="#__codelineno-82-51"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-52" name="__codelineno-82-52" href="#__codelineno-82-52"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">)]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-82-53" name="__codelineno-82-53" href="#__codelineno-82-53"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-82-54" name="__codelineno-82-54" href="#__codelineno-82-54"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-55" name="__codelineno-82-55" href="#__codelineno-82-55"></a>
|
||
<a id="__codelineno-82-56" name="__codelineno-82-56" href="#__codelineno-82-56"></a><span class="cm">/* 中间插入元素 */</span>
|
||
<a id="__codelineno-82-57" name="__codelineno-82-57" href="#__codelineno-82-57"></a><span class="kt">void</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-58" name="__codelineno-82-58" href="#__codelineno-82-58"></a><span class="w"> </span><span class="n">assert</span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">));</span>
|
||
<a id="__codelineno-82-59" name="__codelineno-82-59" href="#__codelineno-82-59"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-82-60" name="__codelineno-82-60" href="#__codelineno-82-60"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">(</span><span class="n">nums</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-61" name="__codelineno-82-61" href="#__codelineno-82-61"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="c1">// 扩容</span>
|
||
<a id="__codelineno-82-62" name="__codelineno-82-62" href="#__codelineno-82-62"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-63" name="__codelineno-82-63" href="#__codelineno-82-63"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="o">--</span><span class="n">i</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-64" name="__codelineno-82-64" href="#__codelineno-82-64"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-82-65" name="__codelineno-82-65" href="#__codelineno-82-65"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-66" name="__codelineno-82-66" href="#__codelineno-82-66"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-82-67" name="__codelineno-82-67" href="#__codelineno-82-67"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-82-68" name="__codelineno-82-68" href="#__codelineno-82-68"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-69" name="__codelineno-82-69" href="#__codelineno-82-69"></a>
|
||
<a id="__codelineno-82-70" name="__codelineno-82-70" href="#__codelineno-82-70"></a><span class="cm">/* 删除元素 */</span>
|
||
<a id="__codelineno-82-71" name="__codelineno-82-71" href="#__codelineno-82-71"></a><span class="c1">// 注意：stdio.h 占用了 remove 关键词</span>
|
||
<a id="__codelineno-82-72" name="__codelineno-82-72" href="#__codelineno-82-72"></a><span class="kt">int</span><span class="w"> </span><span class="nf">removeItem</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-73" name="__codelineno-82-73" href="#__codelineno-82-73"></a><span class="w"> </span><span class="n">assert</span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">));</span>
|
||
<a id="__codelineno-82-74" name="__codelineno-82-74" href="#__codelineno-82-74"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-82-75" name="__codelineno-82-75" href="#__codelineno-82-75"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-76" name="__codelineno-82-76" href="#__codelineno-82-76"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-82-77" name="__codelineno-82-77" href="#__codelineno-82-77"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-78" name="__codelineno-82-78" href="#__codelineno-82-78"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-82-79" name="__codelineno-82-79" href="#__codelineno-82-79"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-82-80" name="__codelineno-82-80" href="#__codelineno-82-80"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-81" name="__codelineno-82-81" href="#__codelineno-82-81"></a>
|
||
<a id="__codelineno-82-82" name="__codelineno-82-82" href="#__codelineno-82-82"></a><span class="cm">/* 列表扩容 */</span>
|
||
<a id="__codelineno-82-83" name="__codelineno-82-83" href="#__codelineno-82-83"></a><span class="kt">void</span><span class="w"> </span><span class="nf">extendCapacity</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-84" name="__codelineno-82-84" href="#__codelineno-82-84"></a><span class="w"> </span><span class="c1">// 先分配空间</span>
|
||
<a id="__codelineno-82-85" name="__codelineno-82-85" href="#__codelineno-82-85"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">newCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">capacity</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">extendRatio</span><span class="p">;</span>
|
||
<a id="__codelineno-82-86" name="__codelineno-82-86" href="#__codelineno-82-86"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">extend</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">);</span>
|
||
<a id="__codelineno-82-87" name="__codelineno-82-87" href="#__codelineno-82-87"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">temp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-82-88" name="__codelineno-82-88" href="#__codelineno-82-88"></a>
|
||
<a id="__codelineno-82-89" name="__codelineno-82-89" href="#__codelineno-82-89"></a><span class="w"> </span><span class="c1">// 拷贝旧数据到新数据</span>
|
||
<a id="__codelineno-82-90" name="__codelineno-82-90" href="#__codelineno-82-90"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span>
|
||
<a id="__codelineno-82-91" name="__codelineno-82-91" href="#__codelineno-82-91"></a><span class="w"> </span><span class="n">extend</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-82-92" name="__codelineno-82-92" href="#__codelineno-82-92"></a>
|
||
<a id="__codelineno-82-93" name="__codelineno-82-93" href="#__codelineno-82-93"></a><span class="w"> </span><span class="c1">// 释放旧数据</span>
|
||
<a id="__codelineno-82-94" name="__codelineno-82-94" href="#__codelineno-82-94"></a><span class="w"> </span><span class="n">free</span><span class="p">(</span><span class="n">temp</span><span class="p">);</span>
|
||
<a id="__codelineno-82-95" name="__codelineno-82-95" href="#__codelineno-82-95"></a>
|
||
<a id="__codelineno-82-96" name="__codelineno-82-96" href="#__codelineno-82-96"></a><span class="w"> </span><span class="c1">// 更新新数据</span>
|
||
<a id="__codelineno-82-97" name="__codelineno-82-97" href="#__codelineno-82-97"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">extend</span><span class="p">;</span>
|
||
<a id="__codelineno-82-98" name="__codelineno-82-98" href="#__codelineno-82-98"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-82-99" name="__codelineno-82-99" href="#__codelineno-82-99"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-100" name="__codelineno-82-100" href="#__codelineno-82-100"></a>
|
||
<a id="__codelineno-82-101" name="__codelineno-82-101" href="#__codelineno-82-101"></a><span class="cm">/* 将列表转换为 Array 用于打印 */</span>
|
||
<a id="__codelineno-82-102" name="__codelineno-82-102" href="#__codelineno-82-102"></a><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="nf">toArray</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-103" name="__codelineno-82-103" href="#__codelineno-82-103"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-82-104" name="__codelineno-82-104" href="#__codelineno-82-104"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.zig</span><pre><span></span><code><a id="__codelineno-83-1" name="__codelineno-83-1" href="#__codelineno-83-1"></a><span class="c1">// 列表类简易实现</span>
|
||
<a id="__codelineno-83-2" name="__codelineno-83-2" href="#__codelineno-83-2"></a><span class="k">fn</span><span class="w"> </span><span class="n">MyList</span><span class="p">(</span><span class="kr">comptime</span><span class="w"> </span><span class="n">T</span><span class="o">:</span><span class="w"> </span><span class="kt">type</span><span class="p">)</span><span class="w"> </span><span class="kt">type</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-3" name="__codelineno-83-3" href="#__codelineno-83-3"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">struct</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-4" name="__codelineno-83-4" href="#__codelineno-83-4"></a><span class="w"> </span><span class="kr">const</span><span class="w"> </span><span class="n">Self</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">@This</span><span class="p">();</span>
|
||
<a id="__codelineno-83-5" name="__codelineno-83-5" href="#__codelineno-83-5"></a>
|
||
<a id="__codelineno-83-6" name="__codelineno-83-6" href="#__codelineno-83-6"></a><span class="w"> </span><span class="n">arr</span><span class="o">:</span><span class="w"> </span><span class="p">[]</span><span class="n">T</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">undefined</span><span class="p">,</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
|
||
<a id="__codelineno-83-7" name="__codelineno-83-7" href="#__codelineno-83-7"></a><span class="w"> </span><span class="n">arrCapacity</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表容量</span>
|
||
<a id="__codelineno-83-8" name="__codelineno-83-8" href="#__codelineno-83-8"></a><span class="w"> </span><span class="n">numSize</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-83-9" name="__codelineno-83-9" href="#__codelineno-83-9"></a><span class="w"> </span><span class="n">extendRatio</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
|
||
<a id="__codelineno-83-10" name="__codelineno-83-10" href="#__codelineno-83-10"></a><span class="w"> </span><span class="n">mem_arena</span><span class="o">:</span><span class="w"> </span><span class="o">?</span><span class="n">std</span><span class="p">.</span><span class="n">heap</span><span class="p">.</span><span class="n">ArenaAllocator</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span><span class="p">,</span>
|
||
<a id="__codelineno-83-11" name="__codelineno-83-11" href="#__codelineno-83-11"></a><span class="w"> </span><span class="n">mem_allocator</span><span class="o">:</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">Allocator</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">undefined</span><span class="p">,</span><span class="w"> </span><span class="c1">// 内存分配器</span>
|
||
<a id="__codelineno-83-12" name="__codelineno-83-12" href="#__codelineno-83-12"></a>
|
||
<a id="__codelineno-83-13" name="__codelineno-83-13" href="#__codelineno-83-13"></a><span class="w"> </span><span class="c1">// 构造函数（分配内存+初始化列表）</span>
|
||
<a id="__codelineno-83-14" name="__codelineno-83-14" href="#__codelineno-83-14"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">init</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">allocator</span><span class="o">:</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">Allocator</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-15" name="__codelineno-83-15" href="#__codelineno-83-15"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-16" name="__codelineno-83-16" href="#__codelineno-83-16"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">heap</span><span class="p">.</span><span class="n">ArenaAllocator</span><span class="p">.</span><span class="n">init</span><span class="p">(</span><span class="n">allocator</span><span class="p">);</span>
|
||
<a id="__codelineno-83-17" name="__codelineno-83-17" href="#__codelineno-83-17"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_allocator</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="p">.</span><span class="o">?</span><span class="p">.</span><span class="n">allocator</span><span class="p">();</span>
|
||
<a id="__codelineno-83-18" name="__codelineno-83-18" href="#__codelineno-83-18"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-19" name="__codelineno-83-19" href="#__codelineno-83-19"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_allocator</span><span class="p">.</span><span class="n">alloc</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arrCapacity</span><span class="p">);</span>
|
||
<a id="__codelineno-83-20" name="__codelineno-83-20" href="#__codelineno-83-20"></a><span class="w"> </span><span class="nb">@memset</span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">,</span><span class="w"> </span><span class="nb">@as</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">));</span>
|
||
<a id="__codelineno-83-21" name="__codelineno-83-21" href="#__codelineno-83-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-22" name="__codelineno-83-22" href="#__codelineno-83-22"></a>
|
||
<a id="__codelineno-83-23" name="__codelineno-83-23" href="#__codelineno-83-23"></a><span class="w"> </span><span class="c1">// 析构函数（释放内存）</span>
|
||
<a id="__codelineno-83-24" name="__codelineno-83-24" href="#__codelineno-83-24"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">deinit</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-25" name="__codelineno-83-25" href="#__codelineno-83-25"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="k">return</span><span class="p">;</span>
|
||
<a id="__codelineno-83-26" name="__codelineno-83-26" href="#__codelineno-83-26"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="p">.</span><span class="o">?</span><span class="p">.</span><span class="n">deinit</span><span class="p">();</span>
|
||
<a id="__codelineno-83-27" name="__codelineno-83-27" href="#__codelineno-83-27"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-28" name="__codelineno-83-28" href="#__codelineno-83-28"></a>
|
||
<a id="__codelineno-83-29" name="__codelineno-83-29" href="#__codelineno-83-29"></a><span class="w"> </span><span class="c1">// 获取列表长度（即当前元素数量）</span>
|
||
<a id="__codelineno-83-30" name="__codelineno-83-30" href="#__codelineno-83-30"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-31" name="__codelineno-83-31" href="#__codelineno-83-31"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numSize</span><span class="p">;</span>
|
||
<a id="__codelineno-83-32" name="__codelineno-83-32" href="#__codelineno-83-32"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-33" name="__codelineno-83-33" href="#__codelineno-83-33"></a>
|
||
<a id="__codelineno-83-34" name="__codelineno-83-34" href="#__codelineno-83-34"></a><span class="w"> </span><span class="c1">// 获取列表容量</span>
|
||
<a id="__codelineno-83-35" name="__codelineno-83-35" href="#__codelineno-83-35"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">capacity</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-36" name="__codelineno-83-36" href="#__codelineno-83-36"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arrCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-83-37" name="__codelineno-83-37" href="#__codelineno-83-37"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-38" name="__codelineno-83-38" href="#__codelineno-83-38"></a>
|
||
<a id="__codelineno-83-39" name="__codelineno-83-39" href="#__codelineno-83-39"></a><span class="w"> </span><span class="c1">// 访问元素</span>
|
||
<a id="__codelineno-83-40" name="__codelineno-83-40" href="#__codelineno-83-40"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">)</span><span class="w"> </span><span class="n">T</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-41" name="__codelineno-83-41" href="#__codelineno-83-41"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-83-42" name="__codelineno-83-42" href="#__codelineno-83-42"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="k">or</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">())</span><span class="w"> </span><span class="nb">@panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-83-43" name="__codelineno-83-43" href="#__codelineno-83-43"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-83-44" name="__codelineno-83-44" href="#__codelineno-83-44"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span>
|
||
<a id="__codelineno-83-45" name="__codelineno-83-45" href="#__codelineno-83-45"></a>
|
||
<a id="__codelineno-83-46" name="__codelineno-83-46" href="#__codelineno-83-46"></a><span class="w"> </span><span class="c1">// 更新元素</span>
|
||
<a id="__codelineno-83-47" name="__codelineno-83-47" href="#__codelineno-83-47"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">set</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="o">:</span><span class="w"> </span><span class="n">T</span><span class="p">)</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-48" name="__codelineno-83-48" href="#__codelineno-83-48"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
|
||
<a id="__codelineno-83-49" name="__codelineno-83-49" href="#__codelineno-83-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="k">or</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">())</span><span class="w"> </span><span class="nb">@panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-83-50" name="__codelineno-83-50" href="#__codelineno-83-50"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-83-51" name="__codelineno-83-51" href="#__codelineno-83-51"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span>
|
||
<a id="__codelineno-83-52" name="__codelineno-83-52" href="#__codelineno-83-52"></a>
|
||
<a id="__codelineno-83-53" name="__codelineno-83-53" href="#__codelineno-83-53"></a><span class="w"> </span><span class="c1">// 尾部添加元素</span>
|
||
<a id="__codelineno-83-54" name="__codelineno-83-54" href="#__codelineno-83-54"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">add</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="o">:</span><span class="w"> </span><span class="n">T</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-55" name="__codelineno-83-55" href="#__codelineno-83-55"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-83-56" name="__codelineno-83-56" href="#__codelineno-83-56"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">())</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-83-57" name="__codelineno-83-57" href="#__codelineno-83-57"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-83-58" name="__codelineno-83-58" href="#__codelineno-83-58"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-83-59" name="__codelineno-83-59" href="#__codelineno-83-59"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numSize</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-83-60" name="__codelineno-83-60" href="#__codelineno-83-60"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span>
|
||
<a id="__codelineno-83-61" name="__codelineno-83-61" href="#__codelineno-83-61"></a>
|
||
<a id="__codelineno-83-62" name="__codelineno-83-62" href="#__codelineno-83-62"></a><span class="w"> </span><span class="c1">// 中间插入元素</span>
|
||
<a id="__codelineno-83-63" name="__codelineno-83-63" href="#__codelineno-83-63"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">insert</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="o">:</span><span class="w"> </span><span class="n">T</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-64" name="__codelineno-83-64" href="#__codelineno-83-64"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="k">or</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">())</span><span class="w"> </span><span class="nb">@panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-83-65" name="__codelineno-83-65" href="#__codelineno-83-65"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
||
<a id="__codelineno-83-66" name="__codelineno-83-66" href="#__codelineno-83-66"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">())</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-83-67" name="__codelineno-83-67" href="#__codelineno-83-67"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
||
<a id="__codelineno-83-68" name="__codelineno-83-68" href="#__codelineno-83-68"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-83-69" name="__codelineno-83-69" href="#__codelineno-83-69"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-70" name="__codelineno-83-70" href="#__codelineno-83-70"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-83-71" name="__codelineno-83-71" href="#__codelineno-83-71"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-72" name="__codelineno-83-72" href="#__codelineno-83-72"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-83-73" name="__codelineno-83-73" href="#__codelineno-83-73"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-83-74" name="__codelineno-83-74" href="#__codelineno-83-74"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numSize</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-83-75" name="__codelineno-83-75" href="#__codelineno-83-75"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-76" name="__codelineno-83-76" href="#__codelineno-83-76"></a>
|
||
<a id="__codelineno-83-77" name="__codelineno-83-77" href="#__codelineno-83-77"></a><span class="w"> </span><span class="c1">// 删除元素</span>
|
||
<a id="__codelineno-83-78" name="__codelineno-83-78" href="#__codelineno-83-78"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">)</span><span class="w"> </span><span class="n">T</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-79" name="__codelineno-83-79" href="#__codelineno-83-79"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="k">or</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">())</span><span class="w"> </span><span class="nb">@panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
||
<a id="__codelineno-83-80" name="__codelineno-83-80" href="#__codelineno-83-80"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-83-81" name="__codelineno-83-81" href="#__codelineno-83-81"></a><span class="w"> </span><span class="c1">// 索引 i 之后的元素都向前移动一位</span>
|
||
<a id="__codelineno-83-82" name="__codelineno-83-82" href="#__codelineno-83-82"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span>
|
||
<a id="__codelineno-83-83" name="__codelineno-83-83" href="#__codelineno-83-83"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-84" name="__codelineno-83-84" href="#__codelineno-83-84"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-83-85" name="__codelineno-83-85" href="#__codelineno-83-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-86" name="__codelineno-83-86" href="#__codelineno-83-86"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
||
<a id="__codelineno-83-87" name="__codelineno-83-87" href="#__codelineno-83-87"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numSize</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-83-88" name="__codelineno-83-88" href="#__codelineno-83-88"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
||
<a id="__codelineno-83-89" name="__codelineno-83-89" href="#__codelineno-83-89"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-83-90" name="__codelineno-83-90" href="#__codelineno-83-90"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-91" name="__codelineno-83-91" href="#__codelineno-83-91"></a>
|
||
<a id="__codelineno-83-92" name="__codelineno-83-92" href="#__codelineno-83-92"></a><span class="w"> </span><span class="c1">// 列表扩容</span>
|
||
<a id="__codelineno-83-93" name="__codelineno-83-93" href="#__codelineno-83-93"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-94" name="__codelineno-83-94" href="#__codelineno-83-94"></a><span class="w"> </span><span class="c1">// 新建一个长度为 size * extendRatio 的数组，并将原数组拷贝到新数组</span>
|
||
<a id="__codelineno-83-95" name="__codelineno-83-95" href="#__codelineno-83-95"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">newCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">extendRatio</span><span class="p">;</span>
|
||
<a id="__codelineno-83-96" name="__codelineno-83-96" href="#__codelineno-83-96"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">extend</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_allocator</span><span class="p">.</span><span class="n">alloc</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">);</span>
|
||
<a id="__codelineno-83-97" name="__codelineno-83-97" href="#__codelineno-83-97"></a><span class="w"> </span><span class="nb">@memset</span><span class="p">(</span><span class="n">extend</span><span class="p">,</span><span class="w"> </span><span class="nb">@as</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">));</span>
|
||
<a id="__codelineno-83-98" name="__codelineno-83-98" href="#__codelineno-83-98"></a><span class="w"> </span><span class="c1">// 将原数组中的所有元素复制到新数组</span>
|
||
<a id="__codelineno-83-99" name="__codelineno-83-99" href="#__codelineno-83-99"></a><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">copy</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">extend</span><span class="p">,</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="p">);</span>
|
||
<a id="__codelineno-83-100" name="__codelineno-83-100" href="#__codelineno-83-100"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">extend</span><span class="p">;</span>
|
||
<a id="__codelineno-83-101" name="__codelineno-83-101" href="#__codelineno-83-101"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
||
<a id="__codelineno-83-102" name="__codelineno-83-102" href="#__codelineno-83-102"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-83-103" name="__codelineno-83-103" href="#__codelineno-83-103"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-104" name="__codelineno-83-104" href="#__codelineno-83-104"></a>
|
||
<a id="__codelineno-83-105" name="__codelineno-83-105" href="#__codelineno-83-105"></a><span class="w"> </span><span class="c1">// 将列表转换为数组</span>
|
||
<a id="__codelineno-83-106" name="__codelineno-83-106" href="#__codelineno-83-106"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">toArray</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="p">[]</span><span class="n">T</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-107" name="__codelineno-83-107" href="#__codelineno-83-107"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
||
<a id="__codelineno-83-108" name="__codelineno-83-108" href="#__codelineno-83-108"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_allocator</span><span class="p">.</span><span class="n">alloc</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">());</span>
|
||
<a id="__codelineno-83-109" name="__codelineno-83-109" href="#__codelineno-83-109"></a><span class="w"> </span><span class="nb">@memset</span><span class="p">(</span><span class="n">arr</span><span class="p">,</span><span class="w"> </span><span class="nb">@as</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">));</span>
|
||
<a id="__codelineno-83-110" name="__codelineno-83-110" href="#__codelineno-83-110"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">arr</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">..)</span><span class="w"> </span><span class="o">|*</span><span class="n">num</span><span class="p">,</span><span class="w"> </span><span class="n">i</span><span class="o">|</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-111" name="__codelineno-83-111" href="#__codelineno-83-111"></a><span class="w"> </span><span class="n">num</span><span class="p">.</span><span class="o">*</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
||
<a id="__codelineno-83-112" name="__codelineno-83-112" href="#__codelineno-83-112"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-113" name="__codelineno-83-113" href="#__codelineno-83-113"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-83-114" name="__codelineno-83-114" href="#__codelineno-83-114"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-115" name="__codelineno-83-115" href="#__codelineno-83-115"></a><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-83-116" name="__codelineno-83-116" href="#__codelineno-83-116"></a><span class="p">}</span>
|
||
</code></pre></div>
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